Synonym: check, control, curb, defend, protect, restrain, secure, shield, watch. Similar words: on guard, square, quarter, quarterback, quarrel with, headquarters, yard, card. Meaning: [gɑrd /gɑːd] 
n. 1. a person who keeps watch over something or someone 2. the person who plays that position on a football team 3. a device designed to prevent injury 4. a posture of defence in boxing or fencing 5. the person who plays the position of guard on a basketball team 6. a group of men who escort and protect some important person 7. a precautionary measure warding off impending danger or damage or injury etc. 8. the duty of serving as a sentry 9. a position on the line of scrimmage 10. a position on a basketball team. v. 1. to keep watch over 2. watch over or shield from danger or harm; protect 3. protect against a challenge or attack 4. take precautions in order to avoid some unwanted consequence.
n. 1. a person who keeps watch over something or someone 2. the person who plays that position on a football team 3. a device designed to prevent injury 4. a posture of defence in boxing or fencing 5. the person who plays the position of guard on a basketball team 6. a group of men who escort and protect some important person 7. a precautionary measure warding off impending danger or damage or injury etc. 8. the duty of serving as a sentry 9. a position on the line of scrimmage 10. a position on a basketball team. v. 1. to keep watch over 2. watch over or shield from danger or harm; protect 3. protect against a challenge or attack 4. take precautions in order to avoid some unwanted consequence. 
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211. They were carded by the police guard at the entrance.
212. He swung at me and I brought my guard up.
213. A guard dog snarled at us as we walked by.
214. We shall have to be on our guard against making mistakes like that in the future.
215. The guard raised the alarm when he discovered that six prisoners had escaped.
216. Check your work thoroughly in order to guard against mistakes.
217. The guard growled out a warning,threatening the prisoners with his gun.
218. The guard blew his whistle to warn of the train's imminent departure.
219. One young policeman stood guard outside the locked embassy gates.
220. Who was on guard the night the fire broke out?
221. He is constantly on guard against any threat of humiliation.
222. Bill slept a little until he was awakened to take his turn on guard.
223. The President, on his arrival, reviewed the guard of honour at the airport.
224. They tried to buy the guard at the bank off but he told the police and the gang were arrested.
225. Three men were arrested and one was under guard in hospital.
226. Mad guard dogs slavered at the end of their chains.
227. The guard let go of the lead, and the dog lunged forward.
228. One of the goals of the campaign is to cut off the elite Republican Guard from its supplies.
229. Miners wore a helmet as a guard against falling rocks.
230. Police colleagues formed a guard of honour at her funeral.
231. The sudden appearance of a security guard caused them to drop the money and run.
232. It's our duty to guard this bridge and not let the enemy pass.
233. The doctor must always guard against passing on disease to his family.
234. The general detached a small force to go and guard the palace.
235. The man handed out his pass and showed it to the guard.
236. Is it safe for the President to walk about without a guard?
237. The guard won't let anyone through the gate without a pass.
238. He had a way of throwing her off guard with his charm when she least expected it.
239. The rancher must always be on guard against the dangers that nature can create.
240. The call-up of National Guard and reserve units begun in late August.
More similar words: on guard, square, quarter, quarterback, quarrel with, headquarters, yard, card, hard, award, board, beard, hazard, pardon, toward, tear down, standard, hardware, on board, hardly any, backyard, regarding, put forward, afterward, as regards, regardless, avant-garde, in regard to, jeopardize, bring forward.