• inclusion; participation, connection, association; complexity; entanglement
• your involvement in something is the fact that you are taking part in it.
• involvement is also the concern and enthusiasm that you feel about something.
• being connected in some way (selling, using, etc.) to illegal drugs
• individual involvement, personal participation in a matter; taking an active role in one's social surroundings
• involvement in political matters, showing interest in political matters
• was interested, participated actively
• partaking socially