Button up

1. Button up (noun): A button-up shirt, i.e. a shirt that is fastened vertically together by a single front-placed column of buttons. 2. Button up (transitive verb): To fasten a garment with buttons, e.g. a cuff. 3. Button up (intransitive verb): To keep warm through the preparatory measure of “buttoning up” i.e. to fasten clothing…