›(of an elected group) to make someone a member through the choice of the present members: She was co-opted on to the committee last June.Recruiting staff, applying for and accepting jobs›to include someone in something, often against their will: Whether they liked it or not, local people were co-opted into the victory parade.Causing somebody to actUrging and persuading›to use someone else's ideas: Rock 'n' roll music was largely co-opted from the blues.Copying and copiesForgery