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by (the) word of mouth
(by|through) (the|) word-of-mouth
by (the) word of mouth
01
by telling others rather than writing or showing it to them
Idiom
Informal
What is the origin of the idiom "by word of mouth" and when to use it?
The idiom "by word of mouth" has ancient origins and reflects the traditional way information was passed from person to person in oral cultures before the widespread use of written language. It dates back to a time when people relied on spoken communication to convey news, stories, and knowledge. This expression is used to describe the transmission of information, rumors, stories, or knowledge through spoken communication rather than through written documents or formal channels.
Examples
The restaurant became popular by word of mouth.
