UsingEnglish.com

'BUTTON UP' Phrasal Verb

Definition of Button up phrasal verb

Button up

  1. Conclude an agreement
    (Separable [optional] | British English)
    » Example: They BUTTONED UP the deal.
  2. Close or fasten with buttons
    (Separable [optional] | International English)
    » Example: She BUTTONED UP her coat and stepped outside into the cold.

Trustpilot