guard

American  

[gahrd] / gɑrd /

verb (used with object)

• guards,
  present (3rd person singular)
• guarded,
  past participle,  past
• guarding
  present participle

1. to keep safe from harm or danger; protect; watch over.

   to guard the ruler.

   Synonyms:

   save, preserve, safeguard, shelter, shield

   Antonyms:

   attack

2. to keep under close watch in order to prevent escape, misconduct, etc..

   to guard a prisoner.

3. to keep under control or restraint as a matter of caution or prudence.

   to guard one's temper.

   Synonyms:

   watch, hold

4. to provide or equip with some safeguard or protective appliance, as to prevent loss, injury, etc.

5. Sports. to position oneself so as to obstruct or impede the movement or progress of (an opponent on offense).

   The linebacker moved to his right to guard the end going out for a pass.

6. Chess. to protect (a piece or a square) by placing a piece in a supportive or defensive position relative to it.

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verb (used without object)

• guards,
  present (3rd person singular)
• guarded,
  past participle,  past
• guarding
  present participle

1. to take precautions (usually followed byagainst ).

   to guard against errors.

2. to give protection; keep watch; be watchful.

noun

• guards
  plural

1. a person or group of persons that guards, protects, or keeps a protective or restraining watch.

   Synonyms:

   patrol, sentinel, sentry, guardsman, guardian, watchman, protector, defend

2. a person who keeps watch over prisoners or others under restraint.

3. a body of people, especially soldiers, charged with guarding a place from disturbance, theft, fire, etc.

4. a close watch, as over a prisoner or other person under restraint.

   to be kept under guard.

5. a device, appliance, or attachment that prevents injury, loss, etc.

6. something intended or serving to guard or protect; safeguard.

   insurance as a guard against disasters.

   Synonyms:

   security, aegis, protection, defense, shield, bulwark, safety

7. a posture of defense or readiness, as in fencing, boxing, or bayonet drill.

8. Football.

   1. either of the linemen stationed between a tackle and the center.

   2. the position played by this lineman.

9. Basketball. either of the players stationed in the backcourt.

10. Chess. a piece that supports or defends another.

11. Cards. a low card that is held with a high card of the same suit and that enables the holder to save the high card for a later trick.

12. British. a railroad conductor.

13. Guards, the name of certain bodies of troops in the British army.

idioms

1. on guard, vigilant; wary: Also on one's guard.

   on guard against dishonest merchants.

2. stand guard over, to watch over; protect.

   The dog stood guard over his wounded master.

3. off guard, unprepared; unwary: Also off one's guard.

   The blow from behind caught him off guard.

guard British  

/ ɡɑːd /

verb

1. to watch over or shield (a person or thing) from danger or harm; protect

2. to keep watch over (a prisoner or other potentially dangerous person or thing), as to prevent escape

3. (tr) to control

   to guard one's tongue

4. to take precautions

5. to control entrance and exit through (a gate, door, etc)

6. (tr) to provide (machinery, etc) with a device to protect the operator

7. (tr)

   1. chess cards to protect or cover (a chess man or card) with another

   2. curling bowls to protect or cover (a stone or bowl) by placing one's own stone or bowl between it and another player

8. archaic (tr) to accompany as a guard

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noun

1. a person or group who keeps a protecting, supervising, or restraining watch or control over people, such as prisoners, things, etc

2. a person or group of people, such as soldiers, who form a ceremonial escort

   guard of honour

3. the official in charge of a train

4. 1. the act or duty of protecting, restraining, or supervising

   2. ( as modifier )

      guard duty

5. another word for garda

6. a device, part, or attachment on an object, such as a weapon or machine tool, designed to protect the user against injury, as on the hilt of a sword or the trigger of a firearm

7. anything that provides or is intended to provide protection

   a guard against infection

8. 1. another name for safety chain

   2. a long neck chain often holding a chatelaine

9. See guard ring

10. sport an article of light tough material worn to protect any of various parts of the body

11. basketball

    1. the position of the two players in a team who play furthest from the basket

    2. a player in this position

12. the posture of defence or readiness in fencing, boxing, cricket, etc

13. cricket (of a batsman) to choose a position in front of the wicket to receive the bowling, esp by requesting the umpire to indicate his position relative to the stumps

14. cricket (of an umpire) to indicate such a position to a batsman

15. having one's defences down; unprepared

16. prepared to face danger, difficulties, etc

17. (of a military sentry, etc) to keep watch

18. 1. (of a sentry) to begin to keep watch

    2. (with over) to take up a protective or defensive stance (over something)

guard More Idioms  

1. see off guard; stand guard.

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Synonym Usage

See defend.

Other Word Forms

Derived Forms

• guarder
  noun
• self-guard
  noun
• underguard
  noun
• preguard
  verb (used with object)
• guardable
  adjective
• guardless
  adjective
• guardlike
  adjective
• unguardable
  adjective

Inflected Forms

Nouns

• guards
  plural

Participles

• guarding
  present
• guarded
  past

Conjugated Forms

Present

• guard
  simple
• guards
  simple
• have guarded
  perfect
• has guarded
  perfect
• am guarding
  progressive
• are guarding
  progressive
• is guarding
  progressive
• have been guarding
  perfect progressive
• has been guarding
  perfect progressive

Past

• guarded
  simple
• had guarded
  perfect
• was guarding
  progressive
• were guarding
  progressive
• had been guarding
  perfect progressive

Future

• will guard
  simple
• will have guarded
  perfect
• will be guarding
  progressive
• will have been guarding
  perfect progressive

Etymology

Origin of guard

First recorded in 1375–1425; late Middle English garde “guardianship,” from Old French g(u)arde, noun derivative of g(u)arder (verb), from Germanic; cognate with Old English weard ( see ward)

Explanation

A person who protects something is called a guard. You might see a security guard at the mall, a crossing guard on the street outside a school, or a palace guard at Buckingham Palace. To guard something is to watch over it or keep it from danger. You should ask someone to guard your backpack when you go to the restroom at the restaurant — or take it with you. The verb guard also means to protect against unintended consequences. To guard against overeating at the party, you could have a light snack before you go, so you aren't as tempted by all the delicious snacks and desserts.

Example Sentences

See Examples For:

guard guards guarded guarding

The authority said it had spent almost £60,000 on safety barriers, administration and paying for a security guard to keep watch over it.

From BBC ● Aug. 8, 2026

Yet in their rush to destroy the old guard, Weiss and Ellison have overlooked the fact that they left behind an elite corps of unemployed, highly motivated investigative journalists with nothing left to lose.

From Salon ● Aug. 8, 2026

Too late, a UN security guard rushes in with a fire extinguisher.

From Barron's ● Aug. 7, 2026

There were 85 similar coast guard sightings reported by Taiwanese authorities in May and June—a nearly 90% increase compared with the same period last year.

From The Wall Street Journal ● Aug. 4, 2026

“We’ll radio for help,” said the first guard, reaching for his communicator.

From "Glitch" by Laura Martin

Cusack and Robbins star as Ivan and Josh, friends since childhood now working as nighttime security guards until they figure out their future.

From Los Angeles Times ● Aug. 6, 2026

“In one incident guards tried to remove a strike leader soon after the strike began,” Carver wrote.

From Salon ● Aug. 6, 2026

For several chaotic days, migrants flooded into Ceuta, overwhelming the border guards and sending many of the 80,000 permanent residents to the safety of their homes.

From The Wall Street Journal ● Aug. 2, 2026

The visibly frail politician was objecting to state lawyers being appointed to represent him when he fell, prompting prison guards to rush him to hospital.

From BBC ● Jul. 30, 2026

I needed to get to Opal in the castle, but in my way there were guards and spears and arrows and a stone wall and possibly more of that beyond the wall.

From "Rump: The (Fairly) True Story of Rumpelstilskin" by Liesl Shurtliff

You can find a ho-hum plea for unity in her answer, as well as a guarded concession that Thanksgiving is a holiday that the vast majority of Americans cherish.

From Slate ● Aug. 4, 2026

With the internet cut and roads blocked or guarded, getting information has been difficult.

From BBC ● Aug. 3, 2026

The recipe -- enhanced by artificial colours -- is jealously guarded.

From Barron's ● Jul. 29, 2026

Writing a female protagonist, especially one who had so many reasons to be guarded, he didn’t want her to be too likable or to be sexualized or to have solutions come easily.

From Los Angeles Times ● Jul. 29, 2026

Nuclear power plants are some of the most closely guarded places in the world.

From "Meltdown" by Deirdre Langeland

Much of the overtime money the department spent went instead toward preparing for unrest, monitoring protests and vigils, guarding hotels housing federal agents, and managing the public response to federal violence.

From Slate ● Jul. 27, 2026

Specialist police officers have been seen guarding the building.

From BBC ● Jul. 21, 2026

As Thompson started mulling video cover letters, she signed a newly “Human Consent Registry” to try guarding her name, image and likeness against unauthorized AI use.

From MarketWatch ● Jul. 15, 2026

One of the biggest challenges is sampling bias because animals actively guarding eggs are much easier to notice and photograph than species that provide no parental care.

From Science Daily ● Jul. 12, 2026

“You’ve been guarding the door all afternoon. Thought maybe ye know something the rest of us don’t.”

From "Amari and the Night Brothers" by B.B. Alston

Related Words

• cover
• defend
• escort
• keep
• look after
• observe
• oversee
• patrol
• preserve
• safeguard
• secure
• shield
• supervise