(mathematics) power

riding

(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

work clothes

work (place where one is employed), workplace

(physics) power

task; (doing a) bit of work / difficult task; hard work