Pronunciation: (i-lip'sis),[key] —n., —pl.-sesPronunciation: (-sēz).[key] 1. Gram. a. the omission from a sentence or other construction of one or more words that would complete or clarify the construction, as the omission of who are, while I am, or while we are from I like to interview people sitting down. b. the omission of one or more items from a construction in order to avoid repeating the identical or equivalent items that are in a preceding or following construction, as the omission of been to Paris from the second clause of I've been to Paris, but they haven't. 2. Print.a mark or marks as ——, … , or * * *, to indicate an omission or suppression of letters or words.