Ellipses, also known as suspension points or dot-dot-dot, are punctuation marks that indicate the omission of a word or phrase from a sentence or quote. There are a few synonyms for ellipses, including elision, omission, and truncation. Elision is the act of omitting a sound or syllable from a word, while omission is the act of leaving out or not including something. Truncation, on the other hand, refers to shortening or cutting off the end of something. While these synonyms don't exactly mean the same thing as ellipses, they can be used interchangeably in certain contexts to convey a similar idea of something being left out or shortened.