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assistant

American  
[uh-sis-tuhnt] / əˈsɪs tənt /

noun

  1. a person who assists or gives aid and support; helper.

  2. a person who is subordinate to another in rank, function, etc.; one holding a secondary rank in an office or post.

    He was assistant to the office manager.

    Synonyms:
    adjutant, aide
  3. something that aids and supplements another.

  4. a faculty member of a college or university who ranks below an instructor and whose responsibilities usually include grading papers, supervising laboratories, and assisting in teaching.


adjective

  1. assisting; helpful.

  2. serving in an immediately subordinate position; of secondary rank.

    an assistant coach.

assistant British  
/ əˈsɪstənt /

noun

    1. a person who assists, esp in a subordinate position

    2. ( as modifier )

      assistant manager

  1. See shop assistant

"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

adjective

  1. archaic helpful or useful as an aid

"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

Other Word Forms

  • nonassistant noun
  • unassistant adjective

Etymology

Origin of assistant

First recorded in 1400–50; late Middle English assistent, from Latin assistent-, stem of assistēns “standing by,” present participle of assistere “to stand by, help”; assist

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.

The study's first authors are Stanford Medicine's Chiraag Kulkarni, MD, an instructor in gastroenterology and hepatology, and assistant clinical research coordinator Touran Fardeen.

From Science Daily • Apr. 3, 2026

"I know she's always wanted to go travelling and this was like the perfect opportunity for her to go and do it," says the 24-year-old finance assistant.

From BBC • Apr. 3, 2026

Akil Davis, the assistant director in charge of the FBI’s Los Angeles office, said Southern California was rife with hospice fraud.

From Los Angeles Times • Apr. 2, 2026

Simon Broucke didn’t expect to use his mathematics degree for his music assistant job at “Masquerade,” the new interactive revival of “The Phantom of the Opera” in New York.

From The Wall Street Journal • Apr. 2, 2026

He signaled to the assistant to lift down one of the lamps.

From "A Girl Named Disaster" by Nancy Farmer