| armguard | (noun) a protective covering for the wrist or arm that is used in archery and fencing and other sports | Synonyms: bracer |
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| blackguard | (noun) someone who is morally reprehensible | Synonyms: bounder, cad, dog, heel, hound |
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| bodyguard | (noun) a group of men who escort and protect some important person | - |
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| (noun) someone who escorts and protects a prominent person | Synonyms: escort |
| coastguard | (noun) a military service responsible for the safety of maritime traffic in coastal waters | - |
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| fireguard | (noun) a metal screen before an open fire for protection (especially against flying sparks) | Synonyms: fire screen |
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| (noun) a narrow field that has been cleared to check the spread of a prairie fire or forest fire | Synonyms: firebreak |
| guard | (noun) a position on a basketball team | - |
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| (noun) the duty of serving as a sentry | Synonyms: guard duty, sentry duty, sentry go |
| (noun) (American football) a position on the line of scrimmage between the center and the tackles | - |
| (noun) a precautionary measure warding off impending danger or damage or injury etc. | Synonyms: precaution, safeguard |
| (noun) a device designed to prevent injury or accidents | Synonyms: safety, safety device |
| (noun) a posture of defence in boxing or fencing | - |
| (noun) a military unit serving to protect some place or person | - |
| (noun) the person who lines up between the center and the tackles on the offensive line of a football team on the line of scrimmage | - |
| (noun) a person who keeps watch over something or someone | - |
| (noun) the person who plays the position of guard on a basketball team | - |
| jacquard | (noun) a highly figured fabric woven on a Jacquard loom | - |
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| lifeguard | (noun) an attendant employed at a beach or pool to protect swimmers from accidents | Synonyms: lifesaver |
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| mudguard | (noun) a curved piece above the wheel of a bicycle or motorcycle to protect the rider from water or mud thrown up by the wheels | Synonyms: splash-guard, splash guard |
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| rearguard | (noun) a detachment assigned to protect the rear of a (retreating) military body | - |
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| safeguard | (noun) a precautionary measure warding off impending danger or damage or injury etc. | Synonyms: guard, precaution |
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| (noun) a document or escort providing safe passage through a region especially in time of war | Synonyms: safe-conduct |
| vanguard | (noun) the position of greatest importance or advancement; the leading position in any movement or field | Synonyms: cutting edge, forefront |
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| (noun) the leading units moving at the head of an army | Synonyms: van |
| (noun) any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts) | Synonyms: avant-garde, new wave, van |