another word for duty: 20 Alternatives & Examples

At a Glance: duty Synonyms and Related Alternatives

Here are the ten most useful options in one flowing summary: obligation (a binding moral or legal requirement), responsibility (something you must take care of), task (a piece of work to do), assignment (work given to you), chore (a routine, dull task), mission (an important task with purpose), onus (the burden of a duty), commitment (a promise to do something), service (work done for others), and tax (money paid on imports, the customs sense of duty).

Which Word Should You Use?

If you want to…	Use	Why
Talk about moral weight	obligation, onus	They carry seriousness
Talk about everyday work	task, chore, assignment	Practical and plain
Talk about loyalty to country or cause	service, allegiance, devotion	They suit dedication
Write formally	obligation, responsibility	Precise and professional
Talk about import charges	tax, tariff, levy	The customs sense of duty
Sound encouraging	mission, calling	They frame duty as purpose
Describe a burden	onus, chore	They admit the weight
Talk about a promised role	commitment, charge	They imply a pledge

Exploring the Multiple Meanings of “duty”

1. A moral or legal obligation

• Meaning: Something you ought to do because it is right or required.
• Explanation: The core sense: duty to family, jury duty, duty of care.
• Example: She felt it was her duty to tell the truth.

2. A task or job assigned

• Meaning: Work you are expected to perform.
• Explanation: The practical sense: “my duties include answering phones.”
• Example: His duties involve weekly reports.

3. A tax on imports

• Meaning: Money charged on goods brought into a country.
• Explanation: The commercial sense: “customs duty,” “import duty.” Same word, different world.
• Example: The shop paid duty on the wine.

4. Active service or attendance

• Meaning: Being at work and ready, especially in uniformed roles.
• Explanation: The service sense: “on duty,” “off duty,” “tour of duty.”
• Example: Two officers are on duty tonight.

Sources: Merriam-Webster, Dictionary.com, Collins

Analyzing 20 duty Alternatives in Detail

Some are direct synonyms and some fit only certain contexts. The usage notes explain each one.

Obligations

1. obligation

IPA: /ˌɑːblɪˈɡeɪʃən/ US · /ˌɒblɪˈɡeɪʃən/ UK

Definition: Something you must do because of law, promise, or morals.

• Usage: The closest synonym for the moral sense. Slightly more formal than duty.
• Example: I have an obligation to repay the loan.

2. responsibility

IPA: /rɪˌspɑːnsəˈbɪləti/ US · /rɪˌspɒnsəˈbɪlɪti/ UK

Definition: Something you are expected to take care of.

• Usage: Direct synonym, broader than duty: responsibilities can be chosen, duties feel imposed.
• Example: Parents share responsibility for the children.

3. onus

IPA: /ˈoʊnəs/ US · /ˈəʊnəs/ UK

Definition: A burden or obligation, often unwelcome.

• Usage: Formal synonym stressing the weight. “The onus is on you” means the duty falls to you.
• Example: The onus of proof lies with the claimant.

4. commitment

IPA: /kəˈmɪtmənt/ (US and UK)

Definition: A promise or firm decision to do something.

• Usage: Related alternative: commitments are volunteered, duties are owed. Warmer in tone.
• Example: He made a commitment to volunteer weekly.

Tasks and Jobs

5. task

IPA: /tæsk/ (US and UK)

Definition: A piece of work to be done.

• Usage: Direct synonym for the work sense. Plain and practical; no moral weight.
• Example: Her first task was sorting the mail.

6. assignment

IPA: /əˈsaɪnmənt/ (US and UK)

Definition: Work given to someone to do.

• Usage: Direct synonym when the work is handed down. Common in schools and offices.
• Example: The reporter got a new assignment.

7. chore

IPA: /tʃɔːr/ US · /tʃɔː/ UK

Definition: A routine, often boring task.

• Usage: Related alternative with a dull flavor. Chores are household and repetitive.
• Example: The kids split the household chores.

8. job

IPA: /dʒɑːb/ US · /dʒɒb/ UK

Definition: A piece of work; also, employment.

• Usage: The plainest synonym. “Do your job” is blunter than “do your duty.”
• Example: Cleaning the pool is his job.

9. role

IPA: /roʊl/ US · /rəʊl/ UK

Definition: The function someone has in a situation.

• Usage: Related alternative for expected behavior. Roles describe position; duties describe actions.
• Example: Her role includes training newcomers.

Roles and Functions

10. function

IPA: /ˈfʌŋkʃən/ (US and UK)

Definition: The purpose or duty of something.

• Usage: Formal synonym, often for positions and organs alike. Impersonal in tone.
• Example: The committee’s function is oversight.

11. mission

IPA: /ˈmɪʃən/ (US and UK)

Definition: An important task given to a person or group.

• Usage: Inspiring synonym: a mission is a duty with purpose. Common in military, charity, and space contexts.
• Example: Their mission was to deliver the supplies.

12. charge

IPA: /tʃɑːrdʒ/ US · /tʃɑːdʒ/ UK

Definition: Responsibility given to someone; care of something.

• Usage: Formal synonym, as in “in charge of.” Implies trust placed in you.
• Example: The nurse took charge of the ward.

13. office

IPA: /ˈɔːfɪs/ US · /ˈɒfɪs/ UK

Definition: A position of authority with duties attached.

• Usage: Formal, traditional synonym. “The office of mayor” means the role and its duties together.
• Example: He performed the office of treasurer well.

Service and Loyalty

14. service

IPA: /ˈsɜːrvɪs/ US · /ˈsɜːvɪs/ UK

Definition: Work done for others or for a cause.

• Usage: Direct synonym for the dedication sense. “Years of service” honors duty performed.
• Example: She was honored for her service.

15. allegiance

IPA: /əˈliːdʒəns/ (US and UK)

Definition: Loyalty to a person, country, or cause.

• Usage: Related alternative for patriotic duty. Formal and solemn.
• Example: Citizens pledge allegiance to the flag.

16. loyalty

IPA: /ˈlɔɪəlti/ (US and UK)

Definition: Faithfulness to a person or cause.

• Usage: Related alternative: loyalty is the feeling behind dutiful acts. Warmer than duty.
• Example: His loyalty to the team never wavered.

17. devotion

IPA: /dɪˈvoʊʃən/ US · /dɪˈvəʊʃən/ UK

Definition: Deep love and loyalty.

• Usage: Emotional synonym for dedicated duty. Stronger feeling than duty alone.
• Example: Her devotion to her patients was clear.

The Tax Sense

18. tax

IPA: /tæks/ (US and UK)

Definition: Money paid to the government, including on imports.

• Usage: Direct synonym for “duty” in the customs sense only. Never use it for moral duty.
• Example: Import taxes raised the price.

19. tariff

IPA: /ˈtærɪf/ (US and UK)

Definition: A tax on imported or exported goods.

• Usage: Precise synonym for trade duties. Formal and economic.
• Example: New tariffs hit steel imports.

20. levy

IPA: /ˈlevi/ (US and UK)

Definition: An amount of money collected as a tax.

• Usage: Formal synonym for imposed charges. Broader than customs duty.
• Example: The council approved a new levy.

Sources: Merriam-Webster, Dictionary.com, Etymonline, Collins

Duty vs. Responsibility vs. Obligation

These three overlap heavily. Here is how they differ:

Word	Source	Example
Duty	Imposed by role, law, or morals	jury duty
Responsibility	Accepted or assigned; broader	responsibility for the project
Obligation	Binding, often formal or legal	contractual obligation

Duty feels handed to you, responsibility feels taken on, and obligation feels signed. In casual speech they swap freely, but in careful writing the source matters. When duty means hope-driven purpose rather than burden, our guide to another word for dreams explores that side of motivation.

Sources: Dictionary.com, Collins

duty and Opposite/Paired Word Pairs

Word	Paired Word	Note
duty	right	The classic pair: duties owed vs. rights held
duty	privilege	Duty binds; privilege frees
on duty	off duty	The working pair for shifts
obligation	freedom	Binding vs. release
service	neglect	Care given vs. care withheld

Duty pairs naturally with right: every duty implies someone’s right. Keep the pair that matches your context.

Sources: Merriam-Webster, Collins

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Common Word Partners of “duty”

Pattern	Common Partners	Example
set phrases	jury duty, on duty, off duty	She was called for jury duty.
verb + noun	do one’s duty, perform one’s duties	He did his duty bravely.
noun + noun	duty calls, sense of duty	Duty calls; I must go.
adjective + noun (tax)	import duty, customs duty, stamp duty	They paid import duty.

Sources: Collins, Dictionary.com

Idiomatic Phrases Featuring “duty”

1. above and beyond the call of duty

• Meaning: Doing far more than required. A genuine idiom.
• Example: She went above and beyond the call of duty.

2. duty calls

• Meaning: One must attend to one’s obligations. An established expression.
• Example: Duty calls: the baby is crying.

3. do one’s duty

• Meaning: To perform what is expected. An established expression.
• Example: The soldiers did their duty.

4. a sense of duty

• Meaning: The feeling that one ought to act. An established expression.
• Example: A strong sense of duty drove her.

Sources: Merriam-Webster, Etymonline

Word Formation of “duty”

Etymology & Structure

Duty comes from Middle English duete, from Old French deu, “due, owed,” which traces to Latin debitus, “owed” (the same root as “debt”). A duty is literally something owed: to your family, your country, or your word.

Date and History

Merriam-Webster records the first known use of duty in the 14th century, in the sense of obligation.

Word Class Variations

• Noun: duty, duties (the main forms)
• Adjective: dutiful (doing one’s duty); duteous (literary)
• Adverb: dutifully (she dutifully attended)
• Adjective (tax sense): dutiable (goods subject to duty)

Sources: Merriam-Webster, Etymonline

Common Word-Choice Mistakes

• Saying “duty” for a fun task: correction: duty implies obligation; fun work is a “task,” “project,” or “hobby.”
• Mixing up “duty” and “tax” senses: correction: “import duty” is a tax; “moral duty” is an obligation. Context decides.
• Writing “my duty is” for a job description: correction: list “responsibilities” or “tasks” instead; “duty” sounds heavier.
• Saying “off duty” for being lazy: correction: “off duty” means not on shift; laziness on shift is “neglecting duty.”
• Overusing “duty calls”: correction: the phrase is fine sparingly; in formal writing say “I must attend to my obligations.”
• Calling a another word for thriving business a duty: correction: businesses thrive; people have duties. Keep subjects straight.
• Using “dutiful” sarcastically without marking it: correction: tone decides; “dutiful” is praise unless the context signals irony.

Frequently Asked Questions

1. What is the closest synonym for duty?
Obligation for the moral sense, task for the work sense.

2. What is the difference between duty and responsibility?
Duty feels imposed by role or morals; responsibility is broader and can be chosen.

3. What does “on duty” mean?
At work and ready for service, especially for police, nurses, and soldiers.

4. What is import duty?
A tax charged on goods brought into a country: the commercial sense of duty.

5. Is duty formal or informal?
Neutral to formal. It suits serious writing and everyday speech about obligations.

6. What is the opposite of duty?
Right or privilege in the moral pairing; freedom from obligation generally.

7. What does “duty calls” mean?
One must leave to attend to obligations: an established expression.

8. Can duty be plural?
Yes: “duties” for multiple tasks or obligations.

9. What is the difference between duty and chore?
Chores are routine household tasks; duty carries moral or formal weight.

10. Is “dutiful” positive?
Usually yes: it praises someone who does their duty faithfully.

Conclusion

For another word for duty, name the kind. Obligation, responsibility, and onus carry the moral weight; task, assignment, and chore cover the daily work; service, allegiance, and devotion suit loyalty; tax, tariff, and levy handle the customs counter. The kind decides the word.

Context does the rest. Jury duty wants “obligation,” office work wants “tasks,” military service wants “service,” and imported wine wants “tax.” When in doubt, ask whether the sentence is about what is owed or what is done. Even obligations feel lighter after a another word for refreshing break.

Match the sense, match the tone, and check the usage notes above. Your writing will sound exact instead of approximate.