"Omni" is a prefix that denotes "all" or "every". It has several synonyms that can be used in different contexts. One synonym for "omni" is "pan-" which means "all" or "completely". For example, "pantheism" refers to the belief that God is present in all things. Another synonym is "holo-", which means "whole" or "entire". For instance, "holistic" refers to considering the whole person or system, rather than just the parts. "Uni-" can also be used as a synonym as it means "one" or "single". For example, "universe" refers to everything that exists as a single entity. These synonyms for "omni" can be used to enhance your vocabulary and better express your ideas.