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)

イ長調[ichouchou] A major
データビット長[deetabittochou] data bit length
ト長調[tochouchou] G major
ニ長調[nichouchou] D major
ハ長調[hachouchou] C major

ヘ長調[hechouchou] F major
ホ長調[hochouchou] E major
ロ長調[rochouchou] B major
委員長[iinchou] committee chairman
意味深長[imishinchou] with profound (often hidden) meaning