expression, godan verb (-ku)
tiptoe; walk on tiptoe
Describes walking quietly or carefully on the balls of the feet, often to avoid making noise or to reach something high.
赤ちゃんが寝ているので、つま先で歩いた。
I walked on tiptoe because the baby was sleeping.
彼は背が低いので、つま先で歩
Since he is short, he stood on tiptoe to get something from the top shelf.