学習塾[gakushuujuku] private night-school
義塾[gijuku] private school
私塾[shijuku] private school (in house)
塾生[jukusei] private-school student
塾長[jukuchou] principal of a private school

家塾[kajuku] (historical) government-backed school operated by a scholar out of his home
英語塾[eigojuku] private school for the study of English
入塾[nyuujuku] entering a private school
進学塾[shingakujuku] cramschool (for boys and girls who wish to go on to the next stage of education)

熟々[tsukuzuku] completely
円熟[enjuku] ripeness
黄熟[koujuku] ripening and turning yellow
噛熟す[kamikonasu] to chew
完熟[kanjuku] completely ripe or mature

使い熟す[tsukaikonasu] to handle (men)
四字熟語[yojijukugo] four-character idiomatic compounds
修熟[shuujuku] developing skill
習熟[shuujuku] skilled
熟す[jukusu] to ripen

孰れにしても[izurenishitemo] anyhow
孰方[docchi] which way

孰れ[izure] where
孰れか[izureka] any of