Meaning of the word "with one voice" in English

What does "with one voice" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

with one voice

US /wɪθ wʌn vɔɪs/
UK /wɪθ wʌn vɔɪs/
"with one voice" picture

Idiom

1.

if people say or do something with one voice, they all say or do the same thing at the same time

Example:
The committee spoke with one voice against the proposal.
All the students agreed with one voice to postpone the exam.
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