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guard (n.)

15世纪早期,"看守的人,士兵的身体",也是"照顾、保管、监护",也是一件盔甲的一部分的名称,来自法语 garde "guardian,warden,keeper;watch,keeping,custody",来自古法语 garder "to keep,maintain,preservation,protect"(见 guard (v.))。抽象或集体意义上的"a keeping,a custody"(如 bodyguard )也是15世纪初的剑术和拳术意义上的,是1590年代的;因此,要被 on guard (1640年代)或 off (one's) guard (1680s).作为足球阵地,从1889年开始。 Guard-rail 1860年开始考证,最初是在铁轨上,外侧在铁轨旁运行;其。 guide-rail 在轨道之间运行。

guard (v.)

15世纪中叶,来自 guard (n.),或来自古法语 garder "看守、守卫、保护、维护、保存"(对应于古北法语 warder ,见 gu- ),来自法兰克语 *wardon ,来自原日耳曼语 *wardon "看守"(来自PIE根 *wer- (3)"感知、注意")。意大利语 guardare ,西班牙语 guardar 也是来自日耳曼语。相关: Guarded ; guarding .

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Definitions of guard from WordNet
1
guard (n.)
a person who keeps watch over something or someone;
guard (n.)
the person who plays that position on a football team;
the left guard was injured on the play
guard (n.)
a device designed to prevent injury or accidents;
Synonyms: safety / safety device
guard (n.)
a posture of defence in boxing or fencing;
keep your guard up
guard (n.)
the person who plays the position of guard on a basketball team;
guard (n.)
a military unit serving to protect some place or person;
guard (n.)
a precautionary measure warding off impending danger or damage or injury etc.;
we let our guard down
Synonyms: precaution / safeguard
guard (n.)
the duty of serving as a sentry;
he was on guard that night
Synonyms: guard duty / sentry duty / sentry go
guard (n.)
(American football) a position on the line of scrimmage;
guards must be good blockers
guard (n.)
a position on a basketball team;
2
guard (v.)
to keep watch over;
there would be men guarding the horses
guard (v.)
watch over or shield from danger or harm; protect;
guard my possessions while I'm away
Synonyms: ward
guard (v.)
protect against a challenge or attack;
Synonyms: defend / hold
guard (v.)
take precautions in order to avoid some unwanted consequence;
guard against infection
guard against becoming too friendly with the staff
From wordnet.princeton.edu