What Is Word of Mouth?

Updated October 26, 2025

What Is Word of Mouth?

It’s a type of informal oral communication. It refers to the process of telling people about a certain product or service because you think it is great and you want to convince them to try it.

Word of mouth definition

It’s a type of informal oral communication. It refers to the process of telling people about a certain product or service because you think it is great and you want to convince them to try it.

However, word-of-mouth in marketing is actually a marketing method that depends on informal social interactions in order to promote a product or service. Simply put, it is free advertising initiated by customer experiences.

Why word-of-mouth marketing is important

Word-of-mouth (WOM) marketing is important because consumers are more likely to trust recommendations from people they know (family, friends, etc) than marketing ads.

WOM marketing happens when one person tells another about a product, that person tells someone else, and so on. In this way a continuous chain will be created, this is why word-of-mouth marketing is one of the most effective and valuable marketing methods.

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