☆ ADVANCED LEVEL : 6 ☆☆ INTERMEDIATE LEVEL : 0 ☆☆☆ ELEMENTARY LEVEL : 0 NONE : 10 ALL : 16

• 유효 (有效) : 사용할 수 있거나 효과가 있음. ☆ Noun
🌏 BEING VALID: The state of being able to use something or being effective.

• 약효 (藥效) : 약의 효과. ☆ Noun
🌏 MEDICINAL EFFICACY: The efficacy of a drug.

• 효 (孝) : 부모를 잘 모시어 받드는 일. ☆ Noun
🌏 FILIAL PIETY; FILIAL DUTY: An act of respecting and taking good care of one's parents.

• 발효 (發效) : 조약, 법, 공문서 등의 효력이 나타남. 또는 그 효력을 나타냄. ☆ Noun
🌏 COMING INTO EFFECT; BECOMING EFFECTIVE: The state of a treaty, legislation, official document, etc., entering into force or putting such things into force.

• 무효 (無效) : 아무런 효력이나 효과가 없음. ☆ Noun
🌏 INVALIDITY: The state of having no effect.

• 발효 (醱酵) : 효모나 미생물에 의해 유기물이 분해되고 변화하는 작용. ☆ Noun
🌏 FERMENTATION: Chemical reaction in which organic matter is decomposed and altered by yeast or microorganisms.

• 충효 (忠孝) : 나라에 대한 충성과 부모에 대한 효도. Noun
🌏 LOYALTY AND FILIAL PIETY: One's loyalty toward one's nation and filial piety for one's parents.

• 특효 (特效) : 어떤 병이나 증세에 특별히 좋은 효과. Noun
🌏 SPECIAL EFFICACY: An effect that works well, especially for a certain disease or symptom.

• 실효 (失效) : 효력을 잃음. Noun
🌏 LOSING EFFECT; INVALIDATION: Losing effect and not being valid any more.

• 불효 (不孝) : 부모를 공경하지 않고 잘 받들지 않음. Noun
🌏 NOT BEING FILIAL: A state of failing to respect and take care of one's parents.

• 즉효 (卽效) : 약 등을 먹거나 발랐을 때 바로 나타나는 좋은 반응. Noun
🌏 IMMEDIATE EFFICACY: An immediate and positive effect that shows after taking or applying medicine, etc.

• 공소 시효 (公訴時效) : 사건이 일어난 뒤 일정 기간 내에만 검사가 공소할 수 있고 이후에는 공소를 할 수 없도록 정한 기한. None
🌏 STATUTE OF LIMITATIONS: A set period after the occurrence of a case during which the prosecutor can request for a trial and after that period he/she cannot.

• 반포지효 (反哺之孝) : 자식이 자라 부모를 지극하게 모시는 효성. Noun
🌏 BEING EXTREMELY DEVOTED TO ONE'S PARENTS: Filial love as evidenced by a grown-up child taking very good care of his/her parent.

• 수효 (數爻) : 낱낱의 수. Noun
🌏 NUMBER: The number of something.

• 실효 (實效) : 실제로 나타나는 효과나 효력. Noun
🌏 EFFECTIVENESS; EFFICACY; PRACTICAL EFFECT: A real effect or effectiveness of something.

• 포효 (咆哮) : 사나운 짐승이 크게 울부짖음. 또는 그 울부짖는 소리. Noun
🌏 ROAR: An act of a fierce animal crying out loud, or such a roaring sound.

• Marriage and love (28) • Introducing (introducing family) (41) • Comparing cultures (78) • Greeting (17) • Housework (48) • Sports (88) • Social issues (67) • School life (208) • Purchasing goods (99) • Apologizing (7) • Using transportation (124) • Cultural differences (47) • Mentality (191) • Family events (during national holidays) (2) • Architecture (43) • Religion (43) • Press (36) • Health (155) • Describing personality (365) • Ordering food (132) • Expressing gratitude (8) • Law (42) • Describing a dish (119) • Using a pharmacy (10) • Daily life (11) • Weekends and holidays (47) • Using public institutions (immigration office) (2) • Economics and business administration (273) • The arts (76) • Describing clothes (110)