Synonyms are words that are similar to another word or have a related meaning. They can be lifesavers when you want to avoid repeating the same word over and over. Sometimes the word you have in mind might not be the most appropriate word, which is why finding the right synonym can come in handy. Expand your vocabulary with an extensive selection of synonyms examples. History and Etymology for synonym Middle English sinonyme, from Latin synonymum, from Greek synōnymon, from neuter of synōnymos synonymous, from syn- + onyma name .