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association

American  
[uh-soh-see-ay-shuhn, -shee-] / əˌsoʊ siˈeɪ ʃən, -ʃi- /

noun

  • associations
    plural
  1. an organization of people with a common purpose and having a formal structure.

    Synonyms:
    band, company, society, union, alliance
  2. the act of associating or state of being associated.

  3. friendship; companionship.

    Their close association did not last long.

    Synonyms:
    fellowship
  4. connection or combination.

  5. the connection or relation of ideas, feelings, sensations, etc.; correlation of elements of perception, reasoning, or the like.

  6. an idea, image, feeling, etc., suggested by or connected with something other than itself; an accompanying thought, emotion, or the like; an overtone or connotation.

    My associations with that painting are of springlike days.

  7. Ecology. a group of plants of one or more species living together under uniform environmental conditions and having a uniform and distinctive aspect.

  8. Chemistry. a weak form of chemical bonding involving aggregation of molecules of the same compound.

  9. touch football.

  10. Astronomy. stellar association.


association British  
/ əˌsəʊsɪˈeɪʃən, -ʃɪ- /

noun

  1. a group of people having a common purpose or interest; a society or club

  2. the act of associating or the state of being associated

  3. friendship or companionship

    their association will not last

  4. a mental connection of ideas, feelings, or sensations

    association of revolution with bloodshed

  5. psychol the mental process of linking ideas so that the recurrence of one idea automatically recalls the other See also free association

  6. chem the formation of groups of molecules and ions, esp in liquids, held together by weak chemical bonds

  7. ecology a group of similar plants that grow in a uniform environment and contain one or more dominant species

"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

association Scientific  
/ ə-sō′sē-ā′shən,-shē- /
  1. A large number of organisms in a specific geographic area constituting a community with one or two dominant species.


Other Word Forms

Derived Forms

Inflected Forms

Nouns


Etymology

Origin of association

First recorded in 1525–35; from Middle French, from Medieval Latin associātiōn-, stem of associātiō “accompaniment, unification”; equivalent to associate + -ion


Explanation

Association has to do with things that are together, whether in a formal group like the National Basketball Association or just two things that are related, like the association between dogs and parks. Any time people or things are connected, there are associations. The National Basketball Association is an example of the business meaning of association — a formal organization or group that works together. If you ask, "What is your association with Bill?" That just means, "How are you connected to Bill?" You can also make mental associations — you might make an association between the smell of fresh bread and your grandmother's kitchen, for example.

Keep Reading on Vocabulary.com

Vocabulary lists containing association

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.

See Examples For:

French regions are responsible for maintaining some 3,700 high school buildings, with their representative association insisting they have "invested heavily" in recent years.

From Barron's ● Oct. 16, 2026

"He's a brilliant football man who truly understands football development because he's been running it," claimed one senior official at a European national association.

From BBC ● Oct. 15, 2026

These limitations mean that other factors could help explain the association.

From Science Daily ● Oct. 15, 2026

Kevin Mannix worked out of the San Francisco Police Department’s Taraval Station for 27 years before retiring, according to the association in June 2018.

From Los Angeles Times ● Oct. 13, 2026

The tests we took were designed to determine our eligibility for Mensa, an international association for those with IQs of 132 or higher.

From "Me Talk Pretty One Day" by David Sedaris

Sounding alarms about driverless trucks are some drivers’ associations.

From The Wall Street Journal ● Oct. 17, 2026

Several medical groups - including the national associations for doctors and nurses - also ban their members from participating in executions.

From BBC ● Oct. 12, 2026

The researchers also examined whether lifestyle could alter these associations.

From Science Daily ● Oct. 10, 2026

This seemingly bizarre choice soon comes to feel entirely natural, invoking associations with Ireland as a place of verbal, theatrical and musical creativity under duress from another power.

From The Wall Street Journal ● Oct. 9, 2026

Or was it a problem with the associations people had with margarine?

From "Blink" by Malcolm Gladwell

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