# open one's mouth

idiom

Source: https://englishreference.com/idiom/open-ones-mouth
Updated: 2026-08-10

## Meaning

to speak

## Examples

- He was so nervous that he could not open his mouth.
- She was so angry at the unfair decision that she finally opened her mouth to complain.
- Even though the room was filled with powerful officials, he dared to open his mouth and challenge their long-standing policies.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.