Word Games Pro Dictionaryinterplay nounreciprocal action and reaction ⧉Copy definition ↗Share ▣Print / Save PDFQuick referenceWord FactsWord length9Starts withIEnds withYContainsNTScrabble score14Database sourceOEWN 2025 CoreMeaningDefinitionsnounreciprocal action and reactionKeep 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. → Words Containing NT Words containing NT. → Ends With Y Words ending with Y. → 9 Letter Words Explore verified 9-letter words. →