omelet vs omelette

omelet and omelette both are nouns.

Word	Noun	Adjective	Verb	Adverb
omelet	Yes	No	No	No
omelette	Yes	No	No	No

As nouns, omelet and omelette are synonyms defined as:

omelet and omelette: beaten eggs or an egg mixture cooked until just set; may be folded around e.g. ham or cheese or jelly

omelet (noun)	omelette (noun)
beaten eggs or an egg mixture cooked until just set; may be folded around e.g. ham or cheese or jelly	beaten eggs or an egg mixture cooked until just set; may be folded around e.g. ham or cheese or jelly