a seat belt

Alternative form of ベルトコンベア (beruto konbea, “belt conveyor”)

Alternative form of ベルトコンベア (beruto konbea, “belt conveyor”)

Synonym of シートベルト (shīto beruto, “seat belt”); a safety belt

feel relaxed / be careless

use one thing for many purposes / work someone hard

to use one's head

(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