Meaning & use

pledge vs promise

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UK/pledʒ və ˈprɒmɪs/
US/pledʒ vər ˈprɑːmɪs/

Meaning

  1. phrasefixed phrase

    A comparison of two words for making a commitment: 'pledge' is formal or public, 'promise' is everyday and personal.

    Grammar: Used as a heading or discussion topic; in a sentence, say 'the difference between pledge and promise' or 'pledge vs promise'.

    Patterns

    • pledge vs promise
    • the difference between pledge and promise
    • pledge something to someone
    • promise someone something

    In legal writing, 'pledge' often refers to a formal commitment, while 'promise' can be informal.

    The article explained pledge vs promise with clear examples from business and daily life.

    She made a pledge to donate monthly, but she only promised to help once.

Common combinations

make a pledge
The company made a pledge to reduce waste.
keep a promise
He always keeps a promise to his children.
solemn pledge
The soldiers took a solemn pledge of loyalty.
empty promise
Voters are tired of empty promises.

Synonyms and how they differ

vow
A very serious, often religious or emotional promise; stronger and more formal than 'promise' but less institutional than 'pledge'.
oath
A formal, often legal or ceremonial promise, such as in court; more official than 'promise'.
commitment
A broader noun for dedication or obligation; not a direct verb substitute for either 'pledge' or 'promise'.

Word family

pledge noun
A formal or public promise, as in 'a campaign pledge'.
promise noun
An assurance that you will do something, as in 'a promise to help'.

Commonly confused: pledge vs promise or plight?

pledge vs promise vs plight

A difficult situation, not a commitment; 'pledge' sounds similar but means a serious promise.

Practice

Which sentence uses 'pledge' most appropriately?

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