REGIME Definition Meaning - Merriam-Webster The meaning of REGIME is regimen How to use regime in a sentence regimen; a regular pattern of occurrence or action (as of seasonal rainfall)… See the full definition Games; Word of the Day; Grammar; Wordplay; Slang; Rhymes; Word Finder; Thesaurus; Join MWU; More Games; Word of the Day; Grammar; Wordplay; Slang;