button up

verb

She buttoned up her coat before going outside.

意味（1）

(transitive) To fasten with a button or buttons.

Button up your shirt cuff. It has come undone

意味（2）

(intransitive) To fasten all the buttons on a coat, or similar item of clothing, to keep warm.

Button up well. It's freezing outside today.

意味（3）

(transitive, intransitive) to conclude; to finalize; to put the finishing touches (on)

It's time to button up the meeting.

意味（4）

Alternative form of button up one's lip.

He needs to button up.

意味（5）

(US, military, slang, transitive, ergative) To seal off (a military vehicle or facility).