/ ˌɪntərˈækt; NAmE / verb [ v ] interact (with sb)
1.
to communicate with sb, especially while you work, play or spend time with them :
Teachers have a limited amount of time to interact with each child.
2.
if one thing interacts with another, or if two things interact , the two things have an effect on each other :
Perfume interacts with the skin's natural chemicals.
► inter·action / -ˈækʃn; NAmE / noun [ U , C ] interaction (between sb/sth) | interaction (with sb/sth) :
the interaction between performers and their audience
the interaction of bacteria with the body's natural chemistry