The idiom "by word of mouth" means to communicate or spread information verbally, rather than in writing or through other formal means. It refers to the act of sharing information with others through speaking, usually by telling someone else what you have heard or learned.
This phrase is often used when talking about the way information is passed from one person to another. For example, if you hear about a new restaurant opening, you might tell your friends about it "by word of mouth" rather than sending them an email or posting about it on social media.
The phrase can also be used to describe the way rumors or gossip spread. When people hear something juicy or scandalous, they often can't resist sharing it with others "by word of mouth."
Overall, "by word of mouth" is a common phrase that describes the informal, spoken way that information is shared between people.
• The author's book became a bestseller through sheer word of mouth, without any major marketing campaigns.
• The small business has grown solely by word of mouth advertising.
• My friend recommended this restaurant to me by word of mouth.
• The local legend of the haunted house has been passed down by word of mouth for generations.
• The rumor about the company's merger was spread by word of mouth before it was officially announced.
• I found out about the job opening by word of mouth from a former colleague.