Synonyms for ISSB — 300 Most Important Words With Meanings (Part 2)

 

After sharing Part 1, one student messaged me and said, “Sir, I learned the first 300 words, but in the test I still got confused when the options were close.”

That is a very common problem.

Learning synonyms is not just about reading a list. You have to train your mind to recognize the closest meaning quickly. In ISSB verbal intelligence tests, you usually don’t get enough time to sit and compare every option slowly. You read the word, understand the meaning, and mark the nearest answer.

This is Part 2 of the ISSB synonyms series. It contains another complete set of 300 important words, numbered from 301 to 600. These words are useful for ISSB verbal intelligence, initial tests, academic screening, and general English improvement.

Teacher’s advice: Do not try to memorize all 300 in one night. Learn 30 words daily, revise old words first, and then test yourself with MCQs. Slow revision is better than fast forgetting.

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ISSB Synonyms List — Part 2 Words 301 to 600

#	Word	Simple Meaning	Important Synonyms
301	Absorb	To take in or soak up	Take in, soak, consume
302	Accelerate	To make faster	Speed up, hasten, quicken
303	Accompany	To go with someone	Go with, escort, join
304	Accuse	To blame someone	Blame, charge, criticize
305	Acquire	To get or gain	Get, obtain, gain
306	Adept	Very skilled	Skilled, expert, proficient
307	Admiration	Respect and approval	Respect, praise, appreciation
308	Affection	Love or care	Love, fondness, warmth
309	Aid	Help or support	Help, assist, support
310	Alliance	A union or partnership	Union, partnership, agreement
311	Ambition	Strong desire to succeed	Aim, goal, aspiration
312	Ample	More than enough	Enough, plentiful, sufficient
313	Analyze	To study carefully	Examine, study, inspect
314	Annoy	To irritate or bother	Irritate, bother, disturb
315	Anticipate	To expect beforehand	Expect, predict, foresee
316	Appropriate	Suitable or proper	Suitable, proper, fitting
317	Arduous	Very difficult	Difficult, hard, tough
318	Arrange	To organize	Organize, order, set up
319	Ascend	To go up	Rise, climb, mount
320	Astonish	To surprise greatly	Surprise, amaze, shock
321	Attain	To achieve	Achieve, reach, gain
322	Authority	Power to command	Power, control, command
323	Awful	Very bad	Terrible, dreadful, bad
324	Barrier	Something that blocks	Obstacle, hurdle, block
325	Benevolent	Kind and helpful	Kind, generous, charitable
326	Blame	To hold responsible	Accuse, criticize, charge
327	Boast	To speak proudly	Brag, show off, praise oneself
328	Boundary	A dividing line	Border, limit, edge
329	Briefly	In a short way	Shortly, concisely, quickly
330	Brutal	Very cruel	Cruel, harsh, savage
331	Calculate	To work out by numbers	Compute, count, estimate
332	Cancel	To stop officially	Call off, abolish, stop
333	Capture	To take control	Seize, catch, arrest
334	Careful	Giving attention	Cautious, attentive, alert
335	Celebrate	To mark happily	Enjoy, honor, rejoice
336	Challenge	A difficult task	Difficulty, test, trial
337	Chaos	Complete disorder	Confusion, disorder, mess
338	Choice	An option	Option, selection, preference
339	Civilized	Cultured and developed	Cultured, refined, developed
340	Clarify	To make clear	Explain, clear up, simplify
341	Clash	A conflict or collision	Conflict, collide, dispute
342	Clumsy	Awkward in movement	Awkward, careless, unskilled
343	Consolidate	To strengthen or combine	Strengthen, unite, combine
344	Command	To order or control	Order, control, instruct
345	Compassionate	Kind and caring	Kind, merciful, sympathetic
346	Compel	To force	Force, oblige, pressure
347	Complain	To express dissatisfaction	Protest, object, grumble
348	Conceited	Too proud of oneself	Arrogant, proud, vain
349	Conclude	To finish or decide	End, finish, infer
350	Confine	To limit or keep inside	Limit, restrict, enclose
351	Conflict	Serious disagreement	Dispute, clash, struggle
352	Conserve	To protect from waste	Preserve, save, protect
353	Consistent	Steady and regular	Steady, regular, constant
354	Construct	To build	Build, create, make
355	Contain	To hold inside	Hold, include, carry
356	Contempt	Strong disrespect	Disdain, disrespect, scorn
357	Continue	To keep going	Carry on, proceed, persist
358	Contrary	Opposite	Opposite, conflicting, different
359	Cooperate	To work together	Collaborate, assist, work together
360	Correct	Right or accurate	Right, accurate, exact
361	Corrupt	Dishonest or immoral	Dishonest, immoral, rotten
362	Costly	Expensive	Expensive, dear, high-priced
363	Crafty	Clever in a tricky way	Cunning, sly, clever
364	Crisis	A serious difficult situation	Emergency, trouble, danger
365	Critical	Very serious or important	Serious, important, crucial
366	Crowd	A large group of people	Group, gathering, mob
367	Crucial	Extremely important	Vital, essential, important
368	Custom	A usual practice	Tradition, habit, practice
369	Debate	A formal discussion	Discussion, argument, dispute
370	Decent	Good and respectable	Respectable, proper, fair
371	Decide	To choose or settle	Choose, settle, determine
372	Deduce	To reach a conclusion	Infer, conclude, derive
373	Defect	A fault or weakness	Fault, flaw, weakness
374	Delight	Great pleasure	Joy, pleasure, happiness
375	Demonstrate	To show clearly	Show, prove, display
376	Deny	To say something is not true	Refuse, reject, contradict
377	Depict	To show or describe	Describe, portray, show
378	Deprive	To take away	Deny, rob, take away
379	Despair	Loss of hope	Hopelessness, misery, sorrow
380	Desperate	Hopeless or urgent	Hopeless, urgent, frantic
381	Devastate	To destroy badly	Destroy, ruin, damage
382	Develop	To grow or improve	Grow, improve, progress
383	Differ	To be unlike	Vary, disagree, contrast
384	Diminish	To make smaller	Reduce, lessen, decrease
385	Discover	To find out	Find, detect, uncover
386	Disgrace	Shame or dishonor	Shame, dishonor, embarrassment
387	Dislike	To not like	Hate, dislike, detest
388	Dismiss	To send away or reject	Reject, remove, discharge
389	Disorder	Lack of order	Chaos, confusion, mess
390	Display	To show	Show, exhibit, present
391	Distinct	Clearly different	Different, clear, separate
392	Distress	Pain or worry	Suffering, worry, pain
393	Divide	To separate into parts	Separate, split, distribute
394	Doubt	Uncertainty	Uncertainty, suspicion, question
395	Durable	Lasting for long	Lasting, strong, tough
396	Earnest	Serious and sincere	Serious, sincere, determined
397	Educate	To teach	Teach, train, instruct
398	Effective	Producing good result	Successful, useful, powerful
399	Elaborate	Detailed	Detailed, expanded, complex
400	Eliminate	To remove completely	Remove, abolish, exclude
401	Embrace	To accept or hold closely	Accept, adopt, hug
402	Emergency	A sudden serious situation	Crisis, danger, urgency
403	Employ	To use or hire	Use, hire, engage
404	Enable	To make possible	Allow, permit, make possible
405	Enforce	To make people obey	Apply, implement, compel
406	Enhance	To improve	Improve, increase, strengthen
407	Enquire	To ask or investigate	Ask, question, investigate
408	Ensure	To make certain	Make sure, secure, guarantee
409	Enthusiasm	Strong interest	Excitement, eagerness, passion
410	Equalize	To make equal	Balance, level, match
411	Escape	To get away	Flee, avoid, get away
412	Establish	To set up	Set up, create, found
413	Evaluate	To judge or assess	Assess, judge, estimate
414	Evade	To avoid cleverly	Avoid, escape, dodge
415	Exaggerate	To overstate	Overstate, magnify, amplify
416	Exceed	To go beyond	Surpass, outdo, go beyond
417	Exceptional	Unusually good	Outstanding, rare, excellent
418	Excite	To make enthusiastic	Thrill, interest, stimulate
419	Execute	To carry out	Perform, implement, carry out
420	Exhibit	To show publicly	Show, display, present
421	Expedite	To speed up	Hasten, accelerate, speed up
422	Expense	Cost	Cost, charge, expenditure
423	Expert	A highly skilled person	Specialist, professional, master
424	Explicit	Clear and direct	Clear, direct, definite
425	Exploit	To use for benefit	Use, utilize, take advantage
426	Express	To show or say	Show, state, convey
427	Extend	To make longer	Lengthen, expand, continue
428	Extensive	Very wide or large	Broad, wide, large
429	External	Outside	Outer, outside, outward
430	Extraordinary	Very unusual	Unusual, remarkable, exceptional
431	Fabricate	To invent falsely	Invent, make up, construct
432	Facilitate	To make easier	Help, assist, ease
433	Faint	Weak or unclear	Weak, dim, unclear
434	False	Not true	Untrue, fake, incorrect
435	Fantastic	Very good	Excellent, wonderful, great
436	Fatigue	Tiredness	Tiredness, exhaustion, weariness
437	Fault	A mistake or defect	Mistake, defect, flaw
438	Favor	Support or kindness	Support, kindness, preference
439	Fear	Feeling of danger	Alarm, fright, worry
440	Feature	A quality or part	Quality, trait, characteristic
441	Firmness	Strength or steadiness	Stability, strength, determination
442	Flourish	To grow successfully	Thrive, prosper, grow
443	Focus	To concentrate	Concentrate, center, attend
444	Follow	To come after or obey	Obey, pursue, come after
445	Forbid	To not allow	Prohibit, ban, disallow
446	Foresee	To predict	Predict, anticipate, expect
447	Former	Previous	Previous, earlier, past
448	Frail	Weak and delicate	Weak, delicate, feeble
449	Frequent	Happening often	Common, repeated, regular
450	Frustrate	To annoy or block	Annoy, upset, block
451	Function	Purpose or work	Role, purpose, operate
452	Generosity	Willingness to give	Kindness, charity, giving
453	Gigantic	Very huge	Huge, enormous, massive
454	Glorious	Very beautiful or great	Splendid, magnificent, wonderful
455	Gradual	Step by step	Slow, steady, progressive
456	Grant	To give or allow	Give, allow, permit
457	Grasp	To hold or understand	Hold, understand, seize
458	Grave	Serious	Serious, severe, important
459	Guard	To protect	Protect, defend, watch
460	Harass	To trouble repeatedly	Trouble, annoy, bother
461	Harmony	Peaceful agreement	Peace, agreement, unity
462	Hazard	Danger or risk	Danger, risk, threat
463	Heal	To become well	Cure, repair, recover
464	Hesitate	To pause due to doubt	Pause, delay, waver
465	Honor	Respect or dignity	Respect, dignity, esteem
466	Hostility	Unfriendly feeling	Enmity, aggression, opposition
467	Humorous	Funny	Funny, amusing, comic
468	Illegal	Against the law	Unlawful, banned, forbidden
469	Illusion	A false idea or image	Deception, fantasy, false appearance
470	Immediate	Without delay	Instant, prompt, direct
471	Immense	Extremely large	Huge, vast, enormous
472	Impartial	Fair and unbiased	Fair, unbiased, neutral
473	Impede	To slow or block	Hinder, obstruct, delay
474	Impolite	Rude	Rude, discourteous, disrespectful
475	Impress	To affect strongly	Amaze, influence, affect
476	Incentive	Something that motivates	Motivation, reward, encouragement
477	Income	Money earned	Earnings, revenue, pay
478	Incredible	Hard to believe	Unbelievable, amazing, extraordinary
479	Indifferent	Not interested	Unconcerned, uninterested, neutral
480	Influence	Power to affect	Affect, impact, persuade
481	Inform	To tell	Tell, notify, report
482	Inhabit	To live in	Live in, occupy, reside
483	Initiate	To start	Begin, start, launch
484	Injurious	Harmful	Harmful, damaging, hurtful
485	Inner	Inside	Internal, inside, inward
486	Insist	To demand firmly	Demand, persist, maintain
487	Inspect	To check carefully	Examine, check, observe
488	Instinct	Natural feeling	Impulse, intuition, natural feeling
489	Instruct	To teach or order	Teach, guide, order
490	Insult	To offend	Offend, abuse, disrespect
491	Intense	Very strong	Strong, extreme, severe
492	Intention	Purpose or aim	Purpose, aim, motive
493	Interfere	To disturb or meddle	Disturb, meddle, intervene
494	Internal	Inside	Inner, inside, domestic
495	Interpret	To explain meaning	Explain, translate, understand
496	Interrupt	To stop someone while speaking or working	Disturb, stop, interfere
497	Introduce	To present for the first time	Present, launch, bring in
498	Investigate	To examine carefully	Examine, inspect, inquire
499	Invite	To ask someone to come	Ask, call, request
500	Irritate	To annoy	Annoy, bother, provoke
501	Jealous	Feeling envy	Envious, resentful, suspicious
502	Join	To connect or unite	Unite, connect, combine
503	Justify	To give a reason	Defend, prove, explain
504	Keen	Eager or sharp	Eager, sharp, enthusiastic
505	Lack	Shortage or absence	Shortage, absence, deficiency
506	Latter	The second mentioned	Later, second, last-mentioned
507	Lavish	Very rich or excessive	Luxurious, generous, extravagant
508	Legitimate	Lawful or valid	Lawful, valid, legal
509	Lessen	To reduce	Reduce, decrease, diminish
510	Liberal	Generous or open-minded	Generous, open-minded, broad
511	Locate	To find position	Find, place, identify
512	Logic	Correct reasoning	Reasoning, sense, rationality
513	Magnificent	Very beautiful or impressive	Splendid, excellent, grand
514	Magnify	To make larger	Enlarge, increase, exaggerate
515	Manage	To handle or control	Handle, control, run
516	Massive	Very large	Huge, large, enormous
517	Mention	To refer to	Refer, state, name
518	Merit	Worth or quality	Worth, value, excellence
519	Mild	Gentle or not strong	Gentle, soft, moderate
520	Misery	Great sadness	Sadness, suffering, distress
521	Modify	To change slightly	Change, adjust, alter
522	Moral	Related to right and wrong	Ethical, good, righteous
523	Mourn	To feel sorrow	Grieve, lament, sorrow
524	Negotiate	To discuss and settle	Discuss, bargain, settle
525	Neutral	Not taking sides	Unbiased, impartial, independent
526	Notable	Important or famous	Important, famous, remarkable
527	Obstacle	Something blocking progress	Barrier, hurdle, difficulty
528	Occur	To happen	Happen, take place, arise
529	Offer	To present or give	Present, give, propose
530	Opponent	One who opposes	Rival, enemy, competitor
531	Outrage	Strong anger or shock	Anger, shock, offence
532	Outstanding	Excellent	Excellent, remarkable, exceptional
533	Overcome	To defeat or handle	Defeat, conquer, handle
534	Partial	Not complete or biased	Biased, incomplete, one-sided
535	Peculiar	Strange or unusual	Strange, unusual, odd
536	Permanent	Lasting forever or long	Lasting, fixed, enduring
537	Perplex	To confuse	Confuse, puzzle, bewilder
538	Persistent	Continuing firmly	Constant, determined, continuing
539	Plenty	A large amount	Abundance, enough, ample
540	Popular	Liked by many	Famous, liked, common
541	Possible	Can happen or be done	Achievable, likely, feasible
542	Practical	Useful in real life	Useful, realistic, workable
543	Precise	Exact and accurate	Exact, accurate, specific
544	Prefer	To like one more than another	Choose, favor, select
545	Prepare	To make ready	Arrange, ready, plan
546	Present	Current or available	Current, existing, available
547	Previous	Earlier	Earlier, former, past
548	Principal	Main or chief	Main, chief, primary
549	Probable	Likely to happen	Likely, possible, expected
550	Progress	Movement toward improvement	Advancement, improvement, development
551	Prohibit	To forbid	Forbid, ban, prevent
552	Proper	Correct or suitable	Suitable, correct, appropriate
553	Prove	To show truth	Show, confirm, demonstrate
554	Purchase	To buy	Buy, acquire, obtain
555	Purpose	Aim or reason	Aim, goal, intention
556	Qualified	Skilled or eligible	Skilled, trained, eligible
557	Question	To ask or inquire	Ask, inquiry, query
558	Realize	To understand	Understand, notice, become aware
559	Reasonable	Fair and sensible	Sensible, fair, logical
560	Recall	To remember	Remember, recollect, retrieve
561	Recent	New or latest	New, latest, fresh
562	Reckless	Careless about danger	Careless, rash, irresponsible
563	Recommend	To suggest	Suggest, advise, propose
564	Recover	To get well again	Regain, heal, improve
565	Refined	Polished and cultured	Polished, cultured, improved
566	Regard	To consider or respect	Consider, respect, view
567	Regular	Normal or repeated	Normal, usual, consistent
568	Reluctant	Unwilling	Unwilling, hesitant, resistant
569	Remarkable	Worth noticing	Notable, amazing, extraordinary
570	Remote	Far away	Distant, far, isolated
571	Remove	To take away	Take away, eliminate, delete
572	Repair	To fix	Fix, mend, restore
573	Require	To need	Need, demand, call for
574	Rescue	To save	Save, deliver, help
575	Resemble	To look like	Look like, match, be similar
576	Resolve	To solve or decide	Solve, decide, settle
577	Restore	To bring back	Bring back, repair, renew
578	Retain	To keep	Keep, preserve, hold
579	Revenge	Payback for harm	Vengeance, retaliation, payback
580	Robust	Strong and healthy	Strong, healthy, sturdy
581	Scarce	Not enough or rare	Rare, limited, insufficient
582	Select	To choose	Choose, pick, prefer
583	Separate	To divide	Divide, split, detach
584	Shallow	Not deep	Not deep, superficial, slight
585	Shame	Disgrace or embarrassment	Disgrace, embarrassment, dishonor
586	Shelter	Protection or safe place	Protection, refuge, cover
587	Similar	Almost the same	Alike, comparable, related
588	Solemn	Serious and formal	Serious, formal, grave
589	Solid	Firm or hard	Firm, strong, hard
590	Spacious	Having much space	Roomy, wide, large
591	Steady	Stable and firm	Stable, firm, constant
592	Strange	Unusual or unfamiliar	Odd, unusual, unfamiliar
593	Strict	Firm about rules	Firm, severe, disciplined
594	Struggle	Hard effort or fight	Fight, effort, difficulty
595	Submit	To present or surrender	Present, surrender, obey
596	Succeed	To achieve success	Win, achieve, prosper
597	Sufficient	Enough	Enough, adequate, ample
598	Suspect	To doubt or mistrust	Doubt, mistrust, accuse
599	Threat	Danger or warning	Danger, risk, warning
600	Transform	To change completely	Change, convert, alter

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How to Revise Part 2 Without Forgetting Part 1

This is where most students make a mistake. They start Part 2 and completely forget Part 1. Don’t do that.

Use this simple routine:

Day	New Words	Revision
Day 1	301–330	Revise Part 1 words 1–50
Day 2	331–360	Revise Part 1 words 51–100
Day 3	361–390	Revise Part 1 words 101–150
Day 4	391–420	Revise Part 1 words 151–200
Day 5	421–450	Revise Part 1 words 201–250
Day 6	451–500	Revise Part 1 words 251–300
Day 7	501–600	Take a mixed test from Part 1 and Part 2

Mini Practice Test From Part 2

1. Accelerate means:
   A) Slow down   B) Speed up   C) Stop   D) Hide
   Answer: B) Speed up
2. Benevolent means:
   A) Cruel   B) Kind   C) Weak   D) Angry
   Answer: B) Kind
3. Conserve means:
   A) Waste   B) Preserve   C) Destroy   D) Deny
   Answer: B) Preserve
4. Despair means:
   A) Hope   B) Joy   C) Hopelessness   D) Courage
   Answer: C) Hopelessness
5. Enormous means:
   A) Tiny   B) Huge   C) Weak   D) Simple
   Answer: B) Huge
6. Impartial means:
   A) Biased   B) Fair   C) Angry   D) Strange
   Answer: B) Fair
7. Reluctant means:
   A) Willing   B) Unwilling   C) Happy   D) Fast
   Answer: B) Unwilling
8. Scarce means:
   A) Abundant   B) Rare   C) Strong   D) Exact
   Answer: B) Rare
9. Transform means:
   A) Change   B) Delay   C) Repair   D) Inspect
   Answer: A) Change
10. Robust means:
    A) Weak   B) Strong   C) Shallow   D) Polite
    Answer: B) Strong

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Final Teacher’s Advice

If you have completed both Part 1 and Part 2, you now have 600 useful synonym words for ISSB-style verbal preparation. That is more than enough for a strong vocabulary base if you revise properly.

But remember, vocabulary alone is not enough. Practice synonyms in MCQ form. Mix easy and difficult words. Time yourself. If you take 30 seconds on every word, you will struggle in the actual test.

My best advice is simple: revise in small chunks, test yourself honestly, and keep a separate list of words you forget again and again. That small “mistake list” will improve your score faster than reading new words endlessly.

Stay consistent. Vocabulary becomes easy when you meet the same words many times.

Disclaimer: This synonym list is prepared for general ISSB-style verbal intelligence practice and English vocabulary improvement. Exact words may vary by test, batch, and official paper pattern. Meanings and synonyms are simplified for learning purposes, so always consider sentence context when choosing the closest option in MCQs. 🇵🇰