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. ©
One who shares as a member of a partnership in the management, or in
the gains and losses, of a business.

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

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.

To associate, to join.