Spar

noun
1.
Nautical. a stout pole such as those used for masts, etc.; a mast, yard, boom, gaff, or the like.
2.
Aeronautics. a principal lateral member of the framework of a wing of an airplane.
verb (used with object), sparred, sparring.
3.
to provide or make with spars.
verb (used without object), sparred, sparring.
1.
(of boxers) to make the motions of attack and defense with the arms and fists, especially as a part of training.
2.
to box, especially with light blows.
3.
to strike or attack with the feet or spurs, as gamecocks do.
4.
to bandy words; dispute.
noun
5.
a motion of sparring.
6.
a boxing match.
7.
a dispute.
noun
1.
any of various more or less lustrous crystalline minerals:
fluorspar.
noun
1.
(during World War II) a woman enlisted in the women’s reserve of the U.S. Coast Guard (disbanded in 1946).
1.
Spanish Arabic.
noun
1.

any piece of nautical gear resembling a pole and used as a mast, boom, gaff, etc
(as modifier): a spar buoy

2.
a principal supporting structural member of an aerofoil that runs from tip to tip or root to tip
verb (intransitive) spars, sparring, sparred
1.
(boxing, martial arts) to fight using light blows, as in training
2.
to dispute or argue
3.
(of gamecocks) to fight with the feet or spurs
noun
4.
an unaggressive fight
5.
an argument or wrangle
6.
(informal) a close friend
noun
1.
any of various minerals, such as feldspar or calcite, that are light-coloured, microcrystalline, transparent to translucent, and easily cleavable related adjective spathic

Early system on Datatron 200 series. Listed in CACM 2(5):16 (May 1959).
SPAR
1.
Latin Semper Paratus (always ready-motto of the United States Coast Guard)
2.
a member of the women’s reserve of the United States Coast Guard