← BackshareGuesshyphenate/ˈhaɪfəneɪt/verbTo join two words or parts of a word with a hyphen.The editor asked me to hyphenate the compound adjective in the sentence.In English, we often hyphenate numbers like 'twenty-one'.You should hyphenate 'well-known' when it comes before a noun.SynonymsconnectjoinAntonymsseparate