口コミ くちコミ Also written クチコミ Meanings Noun word of mouth See also: マスコミ. comments written online (about a product, service, etc.); online reviews Kanji 口 mouth. Read as くち. Example sentences その情報は口コミで瞬く間に知れ渡った。The news spread quickly by word of mouth. Common phrases 口コミで広がる 口コミで広まる 口コミが広がる Jinuma: Japanese Dictionary · Word lists