active duty
C1-C2Formal, Military, Legal, News
Definition
Meaning
A status of full-time military service, as opposed to reserve or retired status.
The state of being officially employed and engaged in one's primary occupation or service, especially in a military context, requiring full commitment and availability.
Linguistics
Semantic Notes
Primarily a non-count noun phrase. It denotes a continuous state or status rather than a single action. The concept is binary: one is either on active duty or not.
Dialectal Variation
British vs American Usage
Differences
The term is used identically in both UK and US military and legal contexts. No significant semantic difference exists. Spelling remains the same.
Connotations
Carries strong connotations of commitment, service, sacrifice, and being subject to military discipline and deployment orders.
Frequency
Higher frequency in American English due to larger size of standing military and more prevalent public discourse on military affairs. Common in British English within military/defence contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
be on + active dutybe called to + active dutyserve on + active dutyplace + [someone] on + active dutyVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Answer the call (to active duty)”
- “In harm's way (while on active duty)”
- “The front line (of active duty)”
Usage
Context Usage
Business
Rare. Might be used metaphorically for 'fully engaged in core work'.
Academic
Used in political science, history, and security studies papers discussing military affairs.
Everyday
Used when discussing someone's military service, especially in news about deployments or veterans.
Technical
Legal and administrative term within military regulations, personnel management, and veterans' benefit laws.
Examples
By Part of Speech
verb
British English
- The regiment was activated for duty in the conflict zone.
- He was ordered to duty with immediate effect.
American English
- The unit was activated for duty overseas.
- She was called to duty after the reserve mobilization.
adverb
British English
- He served actively for fifteen years before retiring.
- The unit was actively engaged in operations.
American English
- She served actively in the Navy.
- They were deployed and actively serving.
adjective
British English
- He is an active-duty officer.
- The policy affects all active-duty personnel.
American English
- She is an active-duty marine.
- Benefits are available to active-duty members.
Examples
By CEFR Level
- My brother is in the army. He is on active duty.
- After training, soldiers usually begin their active duty.
- She was on active duty for three years.
- The government recalled several hundred reservists to active duty following the crisis.
- Personnel on active duty are entitled to housing allowances.
- His prolonged period of active duty in conflict zones qualified him for additional veterans' benefits.
- The legislation proposes extending healthcare coverage to all former service members, regardless of their total time on active duty.
Learning
Memory Aids
Mnemonic
Think of an ACTIVE soldier on DUTY – not resting, not a civilian, but actively performing their military job.
Conceptual Metaphor
SERVICE IS A STATE OF BEING (a status one inhabits), DUTY IS A LOCATION (one is 'on' it).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid calquing as 'активный долг' (incorrect). The correct translation is 'действительная военная служба'.
- Do not confuse with 'active service' which has a slightly narrower meaning of being deployed in a combat zone.
- The phrase is a fixed unit; translating 'active' and 'duty' separately leads to error.
Common Mistakes
- Using it as a countable noun (*'an active duty').
- Omitting the preposition 'on' (*'He is active duty').
- Confusing with 'active service' (the latter implies combat or operational deployment).
Practice
Quiz
Which of the following is the correct meaning of 'active duty'?
FAQ
Frequently Asked Questions
'Active duty' is the broader term for full-time military status. 'Active service' often, but not always, implies being deployed in a combat or operational theatre. All personnel on active service are on active duty, but not all on active duty are necessarily on active service.
It is almost exclusively a military and occasionally paramilitary term (e.g., coast guard). Using it for a regular job is metaphorical or humorous.
Yes, 'on' is the standard and required preposition. You serve 'on' active duty, are called 'to' active duty, or return 'to' active duty.
They are contrasting statuses. 'Active duty' is full-time, primary occupation. 'Reserve duty' is typically part-time, where service members train periodically but are civilians unless activated.