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by (the) word of mouth
01
by telling others rather than writing or showing it to them
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.
例
Most of our customers hear about us through the word of mouth.
We heard about the event through word of mouth, as there was no official announcement.
The book became a worldwide best-seller, largely by the word of mouth.
The news about the upcoming event began to go around the office through word of mouth.
The small indie film gained popularity by spreading through word of mouth, initially flying under the radar of mainstream audiences.
