Open English Wordnet
Nouns
(n)omission, deletionany process whereby sounds or words are left out of spoken words or phrases (n)deletion(genetics) the loss or absence of one or more nucleotides from a chromosome (n)deletion, excision, cutthe omission that is made when an editorial change shortens a written passage“an editor's deletions frequently upset young authors”,
“both parties agreed on the excision of the proposed clause” (n)deletionthe act of deleting something written or printed