on one's honor

English

Alternative forms

• upon one's honor, on one's honour (UK)

Prepositional phrase

on one's honor

1. (US) used to emphasize that one is behaving or going to behave in a trustworthy manner.
2. (dated) expected to do what one has promised, expected to uphold one's promise.
   • 1986, R.E.M. (lyrics and music), “I Believe”, in Lifes Rich Pageant:

     When I was young and fever fell / My spirit I will not tell / You're on your honor not to tell

Further reading

• “on one's honor”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “on ones honor”, in Collins English Dictionary.
• “on one’s honour”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “be on your honour”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “on your honour” in Longman Dictionary of Contemporary English, Longman.