guard
B1Neutral. Common in both formal and informal contexts, with specific professional uses (military, corrections, sports).
Definition
Meaning
To watch over and protect from harm or danger; a person or device that performs this protective function.
A defensive posture in sports; a protective rail or covering on machinery; a state of vigilant caution (e.g., 'on guard'); a prison officer.
Linguistics
Semantic Notes
The word spans multiple domains (security, sports, machinery, behavior). As a verb, it can be transitive ('guard the entrance') or used reflexively ('guard against mistakes'). The plural 'guards' often refers to a military unit or ceremonial troops.
Dialectal Variation
British vs American Usage
Differences
In UK contexts, 'prison guard' is less common than 'prison officer' or 'warder' (archaic). In basketball, 'point guard' and 'shooting guard' are standard in both. 'Changing of the Guard' (ceremonial) is strongly associated with UK (Buckingham Palace).
Connotations
UK: May carry stronger historical/military ceremonial connotations (e.g., Guards regiments). US: Slightly broader for security personnel and common in sports terminology.
Frequency
Comparably frequent in both varieties. The phrasal verb 'guard against' is equally common.
Vocabulary
Collocations
Grammar
Valency Patterns
[guard] + NP (transitive)[guard] + against + NP/Gerund[guard] + NP + from + NPstand + [guard] + over + NPVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “catch someone off guard”
- “on one's guard”
- “old guard”
- “guard one's tongue”
- “mount guard”
Usage
Context Usage
Business
Refers to data/cybersecurity ('firewall guards against breaches'), trade secrets, or physical security.
Academic
Used in historical/military studies, psychology ('ego defense mechanisms guard against anxiety'), and biology ('guard cells' in plants).
Everyday
Common for home security, personal caution, and watching children/pets.
Technical
In engineering: 'guard rail', 'safety guard'. In sports: 'full-back' in rugby is a guarding position.
Examples
By Part of Speech
verb
British English
- Soldiers were ordered to guard the perimeter.
- You must guard your personal details online.
- She carefully guarded the antique vase from the children.
American English
- The player needs to guard the three-point line more closely.
- Companies must guard against insider threats.
- He guarded his reputation fiercely.
adverb
British English
- This usage is rare to non-standard. 'Guardedly' is the adverbial form from the adjective 'guarded' (cautious).
American English
- This usage is rare to non-standard. 'Guardedly' is the adverbial form from the adjective 'guarded' (cautious).
adjective
British English
- The guard dog barked at the intruder.
- He took a guard position at the door.
- The guard regiment has a long history.
American English
- The guard rail prevented the car from going over the cliff.
- She plays the guard position on the basketball team.
- Check the guard band frequencies.
Examples
By CEFR Level
- The security guard opens the door.
- Guard your bag in the café.
- A fire guard is in front of the fireplace.
- Two police officers are guarding the building.
- You should always guard your password.
- The soldier was on guard all night.
- The politician's reply was carefully guarded to avoid controversy.
- The castle was guarded by a moat and high walls.
- The champion was caught off guard by the challenger's new tactic.
- The company instituted stringent protocols to guard its intellectual property from industrial espionage.
- His inherent scepticism guarded him against falling for the elaborate financial scam.
- The rear guard action allowed the main force to retreat in good order.
Learning
Memory Aids
Mnemonic
Imagine a GARD (near 'garden') with a U in the middle, needing a GUARD to protect its rare flowers.
Conceptual Metaphor
PROTECTION IS A PHYSICAL BARRIER/SHIELD ('guard against criticism'); VIGILANCE IS BEING AWAKE/ALERT ('let your guard down').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid using 'guard' for 'bodyguard' in all contexts – Russian 'охрана' is broader. The Russian verb 'охранять' is a closer match than 'сторожить' (which implies watching, not necessarily protecting). 'Guard dog' is not 'сторожевая собака' but 'охранная собака'.
Common Mistakes
- Incorrect: 'He guarded the mistake.' Correct: 'He guarded against the mistake.' Incorrect preposition: 'guard from' vs. 'guard against' (the latter is for abstract threats). Confusing 'guard' with 'guide' in speech.
Practice
Quiz
In the idiom 'let your guard down', what does 'guard' most closely mean?
FAQ
Frequently Asked Questions
Yes. In American football, a 'guard' is an offensive line position. In UK football (soccer), the term is not a standard position; 'defender' or 'full-back' is used.
'Guard' implies active, vigilant watching to prevent attack or danger. 'Protect' is broader, meaning to keep safe from harm, which can be passive (a roof protects from rain). You guard a bank; you protect your health.
Yes, but usually as part of a compound noun: Security Guard, Prison Guard, Coast Guard. It's less common as a standalone title like 'Officer' or 'Warden'.
It refers to the original, established, and often conservative members of a group or organization, who are resistant to change.