Synonyms for nub Found 17 synonyms across 3 meanings for “nub”. a small lump or protuberance (noun) nubble a small piece (noun) stub the choicest or most essential or most vital part of some idea or experience (noun) kernelsubstancecorecentercentreessencegistheartinwardnessmarrowmeatpithsumnitty-gritty Explore Related Words Rhymes with nubSynonyms for nubbleSynonyms for stubSynonyms for kernelSynonyms for substanceSynonyms for core Synonym Finder | Rhyme Finder | Poetry Editor