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Idiom

nail your colours to the mast

idiom (verb phrase) C1
/neɪl jʊr ˈkʌlərz tə ðə mæst/

Meanings

idiom (verb phrase)

To publicly and firmly declare your opinion, principles, or allegiance, especially in a controversial situation.

Visual cue for nail your colours to the mast — meaning 1

Definition

To nail your colours to the mast means to state your beliefs or loyalties clearly and publicly, especially when there is risk or disagreement.

If you nail your colours to the mast, you openly declare what you believe or which side you support. It suggests commitment and courage, because you are not hiding your position. People often use it when a decision must be made or when others are staying neutral.

Examples

  • In the meeting, Maya decided to nail your colours to the mast and backed the new policy.
  • If you nail your colours to the mast now, be ready to explain your reasons.
  • The senator finally nailed your colours to the mast on the climate bill.
  • I don’t want to stay neutral anymore—I’m going to nail your colours to the mast and support the strike.