to fold up
[phrase form: fold]
01
折り畳む, 畳む
to bend something to make it smaller or more compact
例
He carefully folded up the letter before placing it in the envelope.
彼は封筒に入れる前に手紙を注意深く折りたたんだ。
02
折り畳む, 小さくなる
to become smaller or more compact by bending or collapsing
例
The collapsible chair folds up neatly, making it convenient to carry.
折りたたみ椅子はきれいに折りたたまれ、運ぶのに便利です。
