volunteer

American  

[vol-uhn-teer] / ˌvɒl ənˈtɪər /

noun

1. a person who voluntarily offers to perform a service or other undertaking.

2. a person who performs a service willingly and without pay.

3. Military. a person who enters the service voluntarily rather than through conscription or draft, especially for special or temporary service rather than as a member of the regular or permanent army.

4. Law.

   1. a person whose actions are not founded on any legal obligation so to act.

   2. a person who steps into a matter that does not concern them, such as a person who pays the debt of another where they are neither legally nor morally bound to do so and has no interest to protect in making the payment.

5. Agriculture. Also volunteer plant a plant that springs up spontaneously, without being seeded, planted, or cultivated by a person.

   We didn't plant any watermelons this year, but look at all the volunteers from last year's crop.

6. Volunteer. a native or inhabitant of Tennessee (used as a nickname).

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adjective

1. of, relating to, or being a person who voluntarily offers to do something.

   a volunteer fireman.

2. Agriculture. growing without being seeded, planted, or cultivated by a person; springing up spontaneously.

   volunteer tomatoes.

verb (used without object)

1. to offer oneself for some service or undertaking.

2. to enter service or enlist voluntarily.

verb (used with object)

1. to offer (oneself or one's services) for some undertaking or purpose.

2. to give, bestow, or perform voluntarily.

   to volunteer a song.

3. to say, tell, or communicate voluntarily.

   to volunteer an explanation.

4. to promise the services of (someone) without having asked if it is something they actually can or want to do.

   He volunteered me to sand and paint the bottom of the boat, and I don’t have the slightest interest in sanding, painting, or boating.

volunteer British  

/ ˌvɒlənˈtɪə /

noun

1. 1. a person who performs or offers to perform voluntary service

   2. ( as modifier )

      a volunteer system

      volunteer advice

2. a person who freely undertakes military service, esp temporary or special service

3. law

   1. a person who does some act or enters into a transaction without being under any legal obligation to do so and without being promised any remuneration for his services

   2. property law a person to whom property is transferred without his giving any valuable consideration in return, as a legatee under a will

4. 1. a plant that grows from seed that has not been deliberately sown

   2. ( as modifier )

      a volunteer plant

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verb

1. to offer (oneself or one's services) for an undertaking by choice and without request or obligation

2. (tr) to perform, give, or communicate voluntarily

   to volunteer help

   to volunteer a speech

3. (intr) to enlist voluntarily for military service

Other Word Forms

• prevolunteer
  noun
• unvolunteering
  adjective

Etymology

Origin of volunteer

First recorded in 1590–1600; from French volontaire, from Latin voluntārius voluntary, with -eer for French -aire

Explanation

To volunteer means to freely offer up your time and service to help. So a volunteer might offer to water a neighbor's plants while he's on vacation or sign up to serve dinner at a local homeless shelter. When it came into usage circa 1600, the noun volunteer referred to a person who offered himself up for military service. It wasn't until a few decades later that the word was first used in a non-military sense. And a little over a hundred years after that, volunteer expanded from functioning as just a noun to also playing the role of verb. A volunteer is someone who volunteers: willingly performs a task or offers a service.

Example Sentences

Volunteer Kali Rodriguez, right, helps Ashley Luna, 18, from Fairfax High School, to find the perfect prom dress for her at the Positive Results Center 10th annual Prom Dress & Tux Gift-Away and Resource Fair.

From Los Angeles Times • Apr. 25, 2026

Volunteer firefighters like Maitree Nuanja do their best to bolster limited local capacity, relying heavily on donations such as drinking water and face masks.

From Barron's • Apr. 3, 2026

I still do taxes this way as a volunteer for the Volunteer Income Tax Assistance program.

From MarketWatch • Apr. 1, 2026

"Volunteer numbers have continued to grow each year, we now have a team of over 50 - but are always looking for driver volunteer for two hours on a Thursday afternoon," Kellond said.

From BBC • Feb. 8, 2026

Killian, a coal miner who moonlights as an emergency medical technician for the Healy Volunteer Fire Department, had a two- way radio on the Argo.

From "Into the Wild" by Jon Krakauer

Related Words

• come forward
• enlist
• sign up
• step forward
• suggest