silica

(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

mochi (glutinous rice cake) / food containing mochi / food kneaded and baked from flour

a surname

(archaic) mochi (Japanese rice cake made from glutinous rice, usually mixed with other ingredients)

continuative of 持つ

用いる: use, make use of, utilize; adopt, employ; need