Meaning

• A favorable opportunity; a convenient or timely chance.

  "At this point, she seized the occasion to make her own observation."

• The time when something happens.

  "on this occasion, I'm going to decline your offer, but next time I might agree."

• An occurrence or state of affairs which causes some event or reaction; a motive or reason.

  "I had no occasion to feel offended, however."

• Something which causes something else; a cause.

• An occurrence or incident.

• A particular happening; an instance or time when something occurred.

  "I could think of two separate occasions when she had deliberately lied to me."

• Need; requirement, necessity.

  "I have no occasion for firearms."

• A special event or function.

  "Having people round for dinner was always quite an occasion at our house."

• A reason or excuse; a motive; a persuasion.

Meaning

• To cause; to produce; to induce

  "it is seen that the mental changes are occasioned by a change of polarity"