수력hydropower 산수landscape 식수drinking water 하수sewage 상수tap water 호수lake 수Wednesday 수영swimming 수영복swimsuit; bathing suit 수영장swimming pool

준비preparation 취준생job seeker 표준standard; criterion 표준어official language 기준standard; basis; criterion 비표준어nonstandard language 수준standard; norm 준결승semifinal 준결승전semifinal 준비물supplies

초급elementary level; beginning stage 초급반beginner's class 최고급the highest grade; top-level 특급special class; special rank; special grade 하급생junior student; underclassman 고급high quality; high grade 고급반class for advanced learners; the highest-level class 고급품high-end product 고급화enhancement 상급반upper grades; higher grades