#1 involvement n. [engagement, participation, involution] the act of sharing in the activities of a group; "the teacher tried to increase his students' engagement in class activities". wn
#2 involvement n. a connection of inclusion or containment; "he escaped involvement in the accident"; "there was additional involvement of the liver and spleen". wn
#3 involvement n. [interest] a sense of concern with and curiosity about someone or something; "an interest in music". wn
#4 involvement n. [affair, affaire, intimacy, liaison, amour] a usually secretive or illicit sexual relationship. wn
#5 involvement n. [participation] the condition of sharing in common with others (as fellows or partners etc.). wn
vizzz