word-of-mouth

adjective
\ˌwərd-ə(v)-ˈmau̇th \

Definition of word-of-mouth 

(Entry 1 of 2)

: orally communicated also : generated from or reliant on oral publicity word-of-mouth customers a word-of-mouth business

word of mouth

noun phrase

Definition of word of mouth (Entry 2 of 2)

: oral communication especially : oral often inadvertent publicity

Synonyms & Antonyms for word-of-mouth

Synonyms: Adjective

nuncupative, oral, spoken, unwritten, verbal, viva voce

Antonyms: Adjective

paper, written

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First Known Use of word-of-mouth

Adjective

1817, in the meaning defined above

Noun phrase

15th century, in the meaning defined above

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The first known use of word-of-mouth was in the 15th century

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by force of circumstances

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