interaction [interactions](conversation or exchange between people) noun [UK: ˌɪn.tə.ˈræk.ʃn̩] [US: ˌɪn.tə.ˈræk.ʃn̩]
interaction [interactions](situation or occurrence in which two or more objects or events act upon one another) noun [UK: ˌɪn.tə.ˈræk.ʃn̩] [US: ˌɪn.tə.ˈræk.ʃn̩]