In a semantic SEO context, an entity is a distinct and identifiable object or concept that is recognized and understood by search engines. The main factors that define an entity are its name, type, and properties.

An entity is defined using attributes and values, where the attributes describe specific characteristics of the entity and the values provide information about those characteristics. For example, an entity “Apple” can have attributes like “name” with a value of “Apple Inc.”, “type” with a value of “Technology Company”, and “founded” with a value of “April 1, 1976”.

These attributes and values help search engines comprehend and categorize the entity for improved search results and relevance.