join

(noun) the shape or manner in which things come together and a connection is made. Synonyms: articulation, joint, juncture, junction.

(noun) a set containing all and only the members of two or more given sets. Synonyms: union, sum. Example: "Let c be the union of the sets a and b."

(verb) become part of; become a member of a group or organization. Synonyms: fall in, get together. Example: "He joined the communist party as a young man."

(verb) cause to become joined or linked. Synonyms: bring together. Example: "Join these two parts so that they fit together."

(verb) come into the company of. Example: "She joined him for a drink."

(verb) make contact or come together. Synonyms: conjoin. Example: "The two roads join here."

(verb) be or become joined or united or linked. Synonyms: connect, link, link up, unite. Examples: "The two streets connect to become a highway." "Our paths joined." "The travelers linked up again at the airport."