HALT Definition Meaning - Merriam-Webster The meaning of HALT is to cease marching or journeying How to use halt in a sentence to cease marching or journeying; discontinue, terminate; to bring to a stop… 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;