defender, guardian, protector, shielder - a person who cares for persons or property

bouncer, chucker-out - a person whose duty is to throw troublemakers out of a bar or public meeting

door guard, doorman, hall porter, ostiary, porter, gatekeeper, doorkeeper - someone who guards an entrance

halberdier - a guard who carries a halberd (as a symbol of his duty)

screener - a guard at an airport who checks passengers or their luggage at a security checkpoint

security guard, watchman, watcher - a guard who keeps watch

lineman - one of the players on the line of scrimmage

device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"

fender - a low metal guard to confine falling coals to a hearth

safety catch, safety lock - guard consisting of a locking device that prevents a weapon from being fired

posture, attitude, position - position or arrangement of the body and its limbs; "he assumed an attitude of surrender"

basketball player, basketeer, cager - an athlete who plays basketball

Oscar Palmer Robertson, Oscar Robertson, Robertson - United States basketball guard (born in 1938)

detachment - a small unit of troops of special composition

yeomanry - a British volunteer cavalry force organized in 1761 for home defense later incorporated into the Territorial Army

entourage, retinue, cortege, suite - the group following and attending to some important person

Praetorian Guard - the elite bodyguard of a Roman Emperor

bodyguard, escort - someone who escorts and protects a prominent person

step, measure - any maneuver made as part of progress toward a goal; "the situation called for strong measures"; "the police took steps to reduce crime"

security measures, security - measures taken as a precaution against theft or espionage or sabotage etc.; "military security has been stepped up since the recent uprising"

assignment, duty assignment - a duty that you are assigned to perform (especially in the armed forces); "hazardous duty"

lineman - the position of a player on a football team who is stationed on the line of scrimmage

football team, eleven - a team that plays football

position - (in team sports) the role assigned to an individual player; "what position does he play?"

basketball team, five - a team that plays basketball

patrol, police - maintain the security of by carrying out a control

keep guard, stand guard, stand sentinel, stand watch - watch over so as to protect; "We must stand sentinel to protect ourselves"; "The jewels over which they kept guard were stolen"

keep an eye on, watch over, watch, observe, follow - follow with the eyes or the mind; "Keep an eye on the baby, please!"; "The world is watching Sarajevo"; "She followed the men with the binoculars"

baby-sit, sit - work or act as a baby-sitter; "I cannot baby-sit tonight; I have too much homework to do"

protect - shield from danger, injury, destruction, or damage; "Weatherbeater protects your roof from the rain"

shepherd - watch over like a shepherd, as a teacher of her pupils

protect - shield from danger, injury, destruction, or damage; "Weatherbeater protects your roof from the rain"

hold - take and maintain control over, often by violent means; "The dissatisfied students held the President's office for almost a week"

act, move - perform an action, or work out or perform (an action); "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel"