go back on

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go back on

She decided not to go back on her word to help her friend move.

Definition
  1. Verb (phrasal verb):
    • To fail to keep a promise, agreement, or commitment: To not do what one has said one would do; to renege on an assurance or obligation.
    • To withdraw from or reverse a previous position or statement: To change one's mind and not follow through on a stated intention.
Usage
  • This phrasal verb is transitive and requires an object (e.g., a promise, word, agreement).
  • It is used to describe a negative action—breaking a trust or commitment.
  • Common structures: "go back on one's word/promise/agreement/commitment."
Examples
  • Verb:
    • He promised to help, but he went back on his word at the last minute.
    • The company went back on its agreement to provide full healthcare benefits.
    • You can trust her; she never goes back on her promises.
Advanced Usage
  • "to go back on a deal": to fail to honor the terms of a formal arrangement or contract.
    • After shaking hands, it would be dishonorable to go back on the deal.
  • The phrasal verb often implies a betrayal of trust or a failure of integrity.
Variants and Related Words
  • Renegue (on) (verb): a more formal synonym meaning to go back on a promise, agreement, or contract.
    • He reneged on his pledge to donate the money.
  • Break (a promise/one's word) (verb phrase): a simpler, more direct synonym.
    • She broke her promise to call.
Synonyms
  • Break (one's word): To fail to keep a promise.
  • Default on: To fail to fulfill an obligation, especially financial.
  • Back out (of): To withdraw from a commitment or promise.
  • Fail to honor: To not respect or fulfill an agreement.
Related Phrasal Verbs
  • Back out (of) (phrasal verb): to decide not to do something one has agreed to do.
    • He backed out of the project at the last second. (Note: This is closely related but does not use the exact target phrase "go back on.")
Related Idioms
  • Break faith with (someone): to stop supporting or being loyal to someone; to betray a trust.
    • By selling the land, he broke faith with the community that trusted him.
  • Eat one's words: to be forced to retract a statement, often in a humiliating way. (This relates to taking back what was said, but is distinct from failing to fulfill a promise.)
    • He had to eat his words after his prediction was proven wrong.
go back on

She decided not to go back on her word to help her friend move.

Verb
  1. fail to fulfill a promise or obligation
    • She backed out of her promise

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