Noun:
1: junction, juncture, articulation, joint, join the shape or manner in which things come together and a connection is made
2: sum, join, union 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:
1: fall in, get together, join become part of; become a member of a group or organization; "He joined the Communist Party as a young man"
2: join, bring together cause to become joined or linked; "join these two parts so that they fit together"
3: join come into the company of; "She joined him for a drink"
4: join, conjoin make contact or come together; "The two roads join here"
5: link up, unite, connect, join, link be or become joined or united or linked; "The two streets connect to become a highway"; "Our paths joined"; "The travelers linked up again at the airport"