Synonyms for grease Found 7 synonyms across 2 meanings for “grease”. a thick fatty oil (especially one used to lubricate machinery) (noun) the state of being covered with unclean things (noun) dirtfilthgrimesoilstaingrunge Explore Related Words Rhymes with greaseSynonyms for dirtSynonyms for filthSynonyms for grimeSynonyms for soilSynonyms for stain Synonym Finder | Rhyme Finder | Poetry Editor