English Reference
noun · verb

occasion

n. · v.
US /əˈkeɪʒən/ UK /əkˈeɪʒən/ oc·ca·sion UK spelling occasioned, occasioning, occasions

  1. 01 B1 Intermediate

    n.a particular time or instance when something happens.

    n.a particular time or instance of an event occurring.

    Simple

    I have met her on several occasions, but we have never really spoken.

    In context

    On several occasions, the manager had warned the staff about the importance of securing the building before leaving at night.

    Usage

    Commonly used with the preposition 'on'.

    Pitfall
    I have met him in many occasions. I have met him on many occasions.

    Use the preposition 'on' with 'occasion', not 'in'.

  2. 02 B1 Intermediate

    n.a special or important event, such as a wedding or a big celebration.

    n.a special event, ceremony, or celebration, often implying a degree of formality.

    Simple

    A graduation is a great occasion for the whole family to get together.

    In context

    The opening of the new gallery was a grand occasion, attended by local dignitaries and famous artists from across the country.

    Usage

    Often modified by adjectives like 'special', 'formal', or 'grand'.

  3. 03 B2 Upper Intermediate Formal

    n.a reason or a cause for doing something.

    n.a reason, cause, or justification for a particular action or feeling.

    Simple

    There is no occasion for you to be so rude to the waiter.

    In context

    The CEO stated that there was no occasion for alarm, despite the recent fluctuations in the global stock market.

    Usage

    Often used in the phrase 'no occasion to' or 'no occasion for'.

  4. 04 C1 Advanced Formal

    v.to cause something to happen.

    v.to bring about or cause something, especially a feeling or a reaction.

    Simple

    The sudden change in the weather occasioned a delay in our travel plans.

    In context

    The publication of the controversial report occasioned a heated debate among members of the scientific community.

    Usage

    This is a transitive verb and always requires a direct object.

Usage separate occasion


From Middle English occasioun, from Middle French occasion, from Old French occasiun, from Latin occāsiōnem, noun of action from perfect passive participle occāsus, from verb occidō, from prefix ob- (“down", "away”) + verb cadō (“fall”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin occāsiō
Level B1 · Intermediate
Frequency Common
Updated