occasion is one of the 1000 most common headwords.
obvious - occasion - odd

Pronunciation

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Singular
occasion

Plural
occasions

  1. (countable) An occasion is a particular time.
    Often she had to rush home on occasions when she might have preferred to stay out.
    He met her on several occasions while a student in Germany.
  2. (countable) An occasion is a good time to do something.
    The visit to Ottawa was a good occasion for us to get together.
  3. (countable) An occasion is a special time or event.
    Nov 12 is a happy occasion. It is my 25th wedding anniversary.
    a good opportunity or chance
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Plain form
occasion

Third-person singular
occasions

Past tense
occasioned

Past participle
occasioned

Present participle
occasioning

  1. (transitive) If   occasions  ,   causes  .
    Now we come to the problems that have occasioned this meeting.