use one thing for many purposes / work someone hard

to use one's head

A semiformal kimono worn on formal visits.

(idiomatic) to avoid being seen; to be clandestine

(Internet slang) avoiding search engines; making something difficult to reach via a search engine

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

The hiragana syllable す (su). Its equivalent in katakana is ス (su). It is the thirteenth syllable in the gojūon order; its position is さ行う段 (sa-gyō u-dan, “row sa, section u”).