(to cause people, groups, things) to become one; to act or work together
combine; join together
Cases of word usage
1) (to cause states, organizations, societies) to unite into a federation (federate)
2) a man; one of a pair of birds or animals; a ship's officer (not an engineer) below the rank of captain; a worker who helps another; (to cause birds or animals) to unite for the purpose of producing young (mate)
3) to form (parts) into one; unite (unify)
