omit vs leave off

omit and leave off both are verbs.

Word	Noun	Adjective	Verb	Adverb
omit	No	No	Yes	No
leave off	No	No	Yes	No

As verbs, omit and leave off are synonyms defined as:

omit and leave off: prevent from being included or considered or accepted

Other synonyms of omit include except, exclude, leave out, take out.

omit (verb)	leave off (verb)
leave undone or leave out	cease to use
prevent from being included or considered or accepted	prevent from being included or considered or accepted
	come to an end, stop or cease