sparring partner

: a stout pole

: a stout rounded usually wood or metal piece (such as a mast, boom, gaff, or yard) used to support rigging

: any of the main longitudinal members of the wing of an airplane that carry the ribs

: box

: to engage in a practice or exhibition bout of boxing

: skirmish, wrangle

: a movement of offense or defense in boxing

: a sparring match or session

: any of various nonmetallic usually cleavable and lustrous minerals

: a member of the women's reserve of the U.S. Coast Guard

: one that shares : partaker

: one associated with another especially in an action : associate, colleague

: either of two persons who dance together

: to join or associate with another as partner

: to provide with a partner

: to join as a partner