definition of
omission

[1] #1 omission n. [skip] a mistake resulting from neglect. wn

[2] #2 omission n. something that has been omitted; "she searched the table for omissions". wn

[3] #3 omission n. [deletion] any process whereby sounds or words are left out of spoken words or phrases. wn

[4] #4 omission n. neglecting to do something; leaving out or passing over something. wn