SIOUX FALLS(noun)Did you mean?RhymesAlso try..fallsiouxDefinitions There is 1 meaning of the phrase Sioux Falls. Sioux Falls - as a noun Largest city in south dakota; located in southeastern south dakota Word Variations & RelationsAnagramsStarts SStarts SIStarts SIOStarts SIOUEnds SEnds LSEnds LLSEnds ALLSStarts S & ends SStarts SI & ends SStarts S & ends LSWords containing SIOUXFALLSA-Z Proximitiessinusoidally16sinusoids10siouansiouan-speakingsioux Sioux Falls sip5sipe6siped8sipes7siphon11