Correct spelling, explanation: occasion is the correct form, because it comes from Latin occasionem, which was built by combining a prefix with another root word – hence double c.
Ocassion is therefore an incorrect form and occasion is the correct one.
Definition of occasion:
noun, an opportunity
I’ve never had an occasion to meet any celebrity.
What’s the occasion for dressing up like that?
Incorrect spelling, explanation: this spelling is a mistake, because origins of the word point to double c, as in occasion (Latin occasionem; root word cidere with a prefix – this is why c got doubled).
Ocassion is incorrect and occasion is the correct form.
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