Half 

반 = a half
절반 = half (exactly 50%)
후반 = the latter half
반바지 = 3/4 length pants
반투명 = translucency
반경, 반지름 = radius (지름 = diameter)  
반신반의(하다) = be (half) in doubt, be dubious
반도 = peninsula

Opposition, return

반대(하다) = opposite
반응(하다) = react, respond
위반(하다) = breach, infringe, violate
반성(하다) = reflect on oneself
반사(하다) = reflect (light)
반항(하다) = resistance, insubordination

반복(하다) = repeat
반문(하다) = to ask in return

반납(하다) = give back (borrowed things)
반품(하다) = return goods (bought things)
반송(하다) = send back (courier, postal parcel)

Meal

반찬 = dishes served to go with rice
반주 = liquor taken at meal time
백반 = meal including rice

Carry, base

반입(하다) = carry/bring into
운반(하다) = carry, transport
선반 = shelf
기반 = foundation, base
초반 = the opening part

Law

법 = law
법학 = law, Jurisprudence
법률 = law

법률 용어 = law term
법률 위반 = breach of the law
법률에 위배되는 = unlawful, illegal, against the law

법원 = court 
헌법 = constitution
불법 = unlawfulness, illegality

불법적 = illegal, unlawful

합법 = lawfulness, legality

합법적 = lawful, legal

법학도 = law student
법학대학/법대 = law school

Method

문법 = grammar
법칙 = rule
방법 = way, method
방식 = way, means, method
공법 = method of construction 
기법 = technique 
방안 = way, plan

Promise 

맹세(하다) = vow, oath 
동맹 = alliance
연맹 = union

Fierce

맹수 = ferocious beast 
맹독 = deadly poison
맹견 = ferocious dog

Blind

맹인 = blind person
색맹 = color-blind person
문맹 = illiterate person
맹장 = appendix, blind gut
맹신(하다) = believe blindly
맹인안내견 = guide dog

Grave

묘지 = cemetery

공동묘지 = a public cemetery

묘비 = a tombstone

성묘(하다) = visit one´s ancestral graves

Wonderful

묘하다 = queer, mysterious
묘미 = charm
묘기 = exquisite skill, feat
미묘하다 = delicate, subtle
교묘하다 = crafty
절묘하다 = exquisite

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Clothes

한복 = traditional Korean clothes
아동복 = children´s clothing
군복 = military uniform
임산복 = maternity clothes 
환자복 = patient’s clothing/uniform
내복 = underclothes (내복약 = medicine for internal use)
수영복 = swimwear
방한복 = winter clothes (against the cold)
작업복 = working clothes

양복 = suit
교복 = school uniform
동복 = winter uniform
하복 = summer uniform

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Repeat, recover

복사(하다) = copy, Xerox

복사기 = copy machine

복잡(하다) = complicated, complex, crowded
중복(되다) = overlapping, repetition
복제(하다) = reproduce, clone
반복(하다) = repeat
복원(하다) = be restored to the former state
복습(하다) = review (lessons)
복귀(하다) = return to (work, regiment…)
회복하다 = recover (economic, health…)

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Stomach

복통 = stomach ache
공복 =empty stomach
복근 = abdominal muscle
이복 = different mother
이복형제 = half sibling

Sub-, vice-, under-

부업 = a side job
부통령 = vice-president
부제 = a subtitle
부지배인 = assistant manager
부작용 = side effect
부회장 = a vice-chairman
부상 =  supplementary prize
부산물 = a by-product

부전공 = a minor (university) 

Wealth  

부 = wealth, riches
부유(하다) = wealthy
부유층 = the wealthy classes
부자 = rich person
풍부(하다) = abundant
졸부 = overnight millionaire
갑부 = a millionaire
빈부격차 = wealth gap

Negation, non-, in-, un-

부족(하다) = insufficient
부도덕(하다) = immoral
부재중 = during one´s absence (부재중통화 = missed call)
부적절(하다) = inappropriate, unsuitable
부득이 = unavoidably, inevitably
부정 = unlawfulness, dishonesty
부정 = infidelity
우유부단(하다) = indecisive

Part, division, section


부분 = part, section, piece
일부 = a part, section (일부분 = partial)  
대부분 = most of, the greater part of
간부 = an executive
내부 = the inside, the inner par
외부 = the outside
부품 = parts, component (of car, computer, cellphone, etc.)
전부 = all
복부 = the abdomen
부대 = military unit

중/북/남/서/동부 = the central/northern/southern/western/eastern part

Protection

보안 = the preservation of public peace
보호 = protection
보험 = insurance
보관(하다) = custody, have a thing in one´s keeping
담보 = security, mortgage
보건소 = public health center
아동 보호 = child protection

Report

예보 = forecasting

일기예보 = weather forecast

경보 = alarm, warning
정보 = information
보고(하다) = report

보고서 = written report, paper

보도(하다) = report, notify

홍보(하다) = public relations
속보 = newsflash

Fill

보충(하다) = supplement
보강(하다) = reinforcement
후보 = candidate, candidacy
보조(하다) = assistance, support, assist

보정(하다) = revision

양보(하다) = make a concession

Step 

보행기 = baby walker
초보/초보자 = beginner
도보 = going on foot
횡단보도 = crosswalk

Writing

문장 = sentence
문법 = grammar (법 = method)
작문 = composition
문화 = culture
논문 = thesis, paper
한문 = Chinese writing
문맹 = an illiterate person (맹 = blind)
문서 = a document
문자 = letters, text 
문학 = literature

Door, entrance 

문 = door, gate
창문 = window
정문 = front gate
문단속 = locking a door
교문 = a school gate
출입문 = entrance, exit
철문 = an iron door
입문 = an introduction

Question

질문 = question
문제 = problem
문답 = questions and answers
설문지 = questionnaire
의문 = a doubt, a question
의문사 = a mysterious death
의문사 = an interrogative
반문(하다) = to ask in return

Small

소아과 = children´s hospital
소심(하다) = timid (심 = heart/mind)
소형 = small (형 = shape/form, 대형 = large size)
소장 = small intestine (대장 = large intestine)
최소 = the minimum (최 = most)  
과소평가 = underestimation
청소년 = young boys and girls, teenagers
소녀,

소년

= young girl, young boy
감소(하다) = decrease

Place

주소 =- address
세탁소 = cleaners
안내소 = information canter
훈련소 = army training camp for recruits
매표소 = box office
휴게소 = resting place, (highway) rest stop
명소 = noted place
보건소 = public health center

Disappear

소독(하다) = disinfection
취소(하다) = cancel
소화(하다/되다) = digest
소비 = consumption
소비자 = consumer

Many, a lot

다양(하다) = various
다수결 = majority vote, decision by majority
일부다처 = polygamy
다정(하다) = warmhearted, tenderhearted
다정다감(하다) = emotional and warmhearted, tenderhearted
다행 = good fortune
다한증 = Hyperhidrosis (excessive sweating)