彼処[asoko] there (place physically distant from both speaker and listener)
其処[soko] there (place relatively near listener)
其処いら[sokoira] that area
其処ら[sokora] everywhere
其れ処か[soredokoroka] on the contrary

何処其処[dokosoko] such-and-such a place
何処でも[dokodemo] anywhere
データ処理[deetashori] data processing
仮処分[karishobun] temporary measures
何処か[dokoka] somewhere

医学技術士[igakugijutsushi] medical technician
医学士[igakushi] Bachelor of Medicine
一言居士[ichigenkoji] person who is ready to comment on every subject
一士[isshi] private first-class (JSDF)
隠士[inshi] hermit

宇宙飛行士[uchuuhikoushi] astronaut
運転士[untenshi] driver
栄養士[eiyoushi] nutritionist
下士[kashi] noncommissioned officer
下士官[kashikan] non-commissioned officer