in·ter·play 
/ˈɪntɚˌpleɪ/ noun
/ˈɪntɚˌpleɪ/ noun : the ways in which two or more things, groups, etc., affect each other when they happen or exist together [noncount] — often + between or of
▪ the interplay between the old and the new ▪ enjoys the interplay of three very different flavors [singular] — + of ▪ a complex interplay of light and color
▪ the interplay between the old and the new ▪ enjoys the interplay of three very different flavors [singular] — + of ▪ a complex interplay of light and color
