S: (n) National Guard, home reserve (United States military reserves recruited by the states and equipped by the federal government; subject to call by either)
S: (n) Air National Guard, ANG (a civilian reserve component of the United States Air Force that provides prompt mobilization during war and assistance during national emergencies)
S: (n) Army National Guard, ARNG (a civilian reserve component of the United States Army comprised of guardsmen who serve during overseas peacekeeping missions and during local emergencies)
S: (n) Territorial Army (British unit of nonprofessional soldiers organized for the defense of Great Britain)
S: (n) precaution, safeguard, guard (a precautionary measure warding off impending danger or damage or injury etc.) "he put an ice pack on the injury as a precaution"; "an insurance policy is a good safeguard"; "we let our guard down"
S: (n) position ((in team sports) the role assigned to an individual player) "what position does he play?"
S: (n) goalkeeper, goalie, goaltender, netkeeper (the defensive position on an ice hockey or soccer or lacrosse team who stands in front of the goal and tries to prevent opposing players from scoring)
S: (n) pitcher, mound (the position on a baseball team of the player who throws the ball for a batter to try to hit) "he has played every position except pitcher"; "they have a southpaw on the mound"
S: (n) catcher (the position on a baseball team of the player who is stationed behind home plate and who catches the balls that the pitcher throws) "a catcher needs a lot of protective equipment"; "a catcher plays behind the plate"
S: (n) first base, first (the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate))
S: (n) second base, second (the fielding position of the player on a baseball team who is stationed near the second of the bases in the infield)
S: (n) shortstop, short (the fielding position of the player on a baseball team who is stationed between second and third base)
S: (n) third base, third (the fielding position of the player on a baseball team who is stationed near the third of the bases in the infield (counting counterclockwise from home plate)) "he is playing third"
S: (n) left field, leftfield (the fielding position of the player on a baseball team who is expected to field balls in the left third of the outfield (looking from home plate))
S: (n) center field, centerfield (the fielding position of the player on a baseball team who is expected to field balls in the central third of the outfield)
S: (n) right field, rightfield (the fielding position of the player on a baseball team who is expected to field balls in the right third of the outfield (looking from home plate))
S: (n) forward (a position on a basketball, soccer, or hockey team)
S: (n) center (a position on a basketball team of the player who participates in the jump that starts the game)
S: (v) guard (to keep watch over) "there would be men guarding the horses"
S: (v) guard, ward (watch over or shield from danger or harm; protect) "guard my possessions while I'm away"
S: (v) defend, guard, hold (protect against a challenge or attack) "Hold that position behind the trees!"; "Hold the bridge against the enemy's attacks"
S: (v) guard (take precautions in order to avoid some unwanted consequence) "guard against becoming too friendly with the staff"; "guard against infection"