Incorrect spelling, explanation:
ocassion is an incorrect form, because the origins of the word point to occasion as a correct form: Latin occasionem is also spelled with double c and single s, due to the fact, that c was doubled when the prefix to the root word was added. Therefore occasion is the right spelling.
Correct spelling, explanation: the correct form is occasion – with double c but single s, because of Latin original word occasionem, which also has double c and single s. Double c is caused by adding a prefix to some previous root word. Thus
ocassion can’t be correct, and the correct form is occasion.
Definition of occasion:
noun, a convenient or favourable time
On the occasion of my birthday I’m going to go to spa.
This is a very good occasion to start a new business.
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