Word Games Pro Dictionaryrapidness nouna rate that is rapid ⧉Copy definition ↗Share ▣Print / Save PDFQuick referenceWord FactsWord length9Starts withREnds withSContainsAPScrabble score12ListenAudio PronunciationAudio pronunciation is unavailable for this word. ▶US ◉Device Pronunciation MeaningDefinitionsnouna rate that is rapidSimilar wordsSynonyms celerityquicknessrapidityspeedinessKeep exploringRelated Tools Word Unscrambler Build words from mixed letters. → Scrabble Finder Find playable words and scores. → Word Finder Search A–Z word lists and patterns. → Starts With R Words beginning with R. → Ends With S Words ending with S. → 9 Letter Words Explore verified 9-letter words. →