(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

forget oneself / be beside oneself

a house

house of something, place where some business is conducted / person who does that thing

a house / one's house

a house

an expert, professional, performer