The idiom "Word of mouth" means -

• The idiom "Word of mouth" means - Spoken recommendation.

• 'Word of mouth' (Idiom)
- English meaning: Given or done by people talking about something or telling people about something.
- Bangla meaning: মুখে মুখে প্রচার; মুখ থেকে মুখে; মানুষের ব্যক্তিগত কথাবার্তার মাধ্যমে তথ্য বা খবর ছড়িয়ে পড়া।

• Example sentence:
- We get most of our work through word-of-mouth recommendations.
- Students discovered the center by word of mouth.

Source: Cambridge Dictionary, English-Bangla Dictionary.