Meaning : Choose or elect as a fellow member or colleague.
Example :
The church members co-opted individuals from similar backgrounds to replenish the congregation.
Meaning : Neutralize or win over through assimilation into an established group.
Example :
We co-opted the independent minority tribes by pulling them into the Northern Alliance.
Meaning : Appoint summarily or commandeer.
Example :
The army tried to co-opt peasants into civil defence groups.
Meaning : Take or assume for one's own use.
Example :
He co-opted the criticism and embraced it.