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volunteer

American  
[vol-uhn-teer] / ˌvɒl ənˈtɪər /

noun

volunteers plural
  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).


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)

volunteers, present (3rd person singular) volunteered, past participle, past volunteering present participle
  1. to offer oneself for some service or undertaking.

  2. to enter service or enlist voluntarily.

verb (used with object)

volunteers, present (3rd person singular) volunteered, past participle, past volunteering present participle
  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. a person who performs or offers to perform voluntary service

    2. ( as modifier )

      a volunteer system

      volunteer advice

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

  2. 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

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

    2. ( as modifier )

      a volunteer plant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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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.

Keep Reading on Vocabulary.com

Vocabulary lists containing volunteer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Domingo Pacheco, a 52-year-old volunteer rescuer with more than three decades of experience, has stepped up to help.

From Barron's • Jun. 27, 2026

He said: "Britain must do the same, but whilst other countries have used conscription, we remain committed to a professional, volunteer armed forces - and that means we need to make reserve service financially worthwhile."

From BBC • Jun. 26, 2026

The Marquis de Lafayette retained some attention, but as an individual volunteer in the Continental Army.

From The Wall Street Journal • Jun. 26, 2026

I have interviewed, worked with and engaged with volunteers — both as a reporter and a volunteer myself — since 1979.

From Salon • Jun. 26, 2026

“You volunteer at the chevra kadisha, right? Did you see something that might suggest Yakov’s death wasn’t an accident?”

From "The City Beautiful" by Aden Polydoros

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