喜び勇む[yorokobiisamu] to be in high spirits
侠勇[kyouyuu] gallantry
真勇[shinyuu] true courage
蛮勇[banyuu] foolhardiness
匹夫の勇[hippunoyuu] rash courage

武勇[buyuu] bravery
武勇伝[buyuuden] martial story
勇ましい[isamashii] brave
勇み足[isamiashi] overeagerness

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