Partner

Part of speech: noun (n.)

1. One who has a part in anything with an other; a partaker; an associate; a sharer. "Partner of his fortune." Shak. Hence: (a) A husband or a wife. (b) Either one of a couple who dance together. (c) One who shares as a member of a partnership in the management, or in the gains and losses, of a business. My other self, the partner of my life. Milton.

2. An associate in any business or occupation; a member of a partnership. See Partnership.

3. A framework of heavy timber surrounding an opening in a deck, to strengthen it for the support of a mast, pump, capstan, or the like. Dormant, or Silent, partner. See under Dormant, a.

Synonyms: Associate; colleague; coadjutor; confederate; partaker; participator; companion; comrade; mate.

Part of speech: verb (v.)

To associate, to join. [Obs.] Shak.