partnern.[For parcener, influenced by part.]1. One who has a part in anything with an other; a partaker; an associate; a sharer.()My other self, the partner of my life. (Milton.)2. (Law) An associate in any business or occupation; a member of a partnership. See Partnership.()3. (Naut.) 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 partner, or Silent partner. See under Dormant, a.()()v. t. To associate, to join.(Shak.)