Dictionary definition · join
noun
- the shape or manner in which things come together and a connection is made
- a set containing all and only the members of two or more given sets"let C be the union of the sets A and B"
verb
- become part of; become a member of a group or organization"He joined the Communist Party as a young man"
- cause to become joined or linked"join these two parts so that they fit together"
- come into the company of"She joined him for a drink"
- make contact or come together"The two roads join here"
- be or become joined or united or linked"The two streets connect to become a highway"
Source: Open English WordNet (CC BY 4.0).