(idiomatic) A piece of cake; an extremely simple thing, something trivial, a cinch, easy as pie.

朝飯前: A piece of cake; an extremely simple thing.

(telephony) a common Japanese telephone greeting: hello; used when answering the telephone / used to confirm that the person being addressed is listening, or to confirm if anyone is listening

put away

smoking room

smoker (person who smokes tobacco habitually)

Synonym of 受動喫煙 (judō kitsuen, “passive smoking”); second-hand smoke

passive smoking

everything

(colloquial) current boyfriend