accessory
affiliation
association
cochairmanship
companionship
company
complicity
condominium
consociation
contribution
cooperation
copartnership
copartnery
cotenancy
engaged
engagement
fellowship
fraternity
fraternization
having a part
implicated
involved
involvement
joint chairmanship
joint control
joint ownership
joint tenancy
membership
participant
participating
participation
participative
participatory
partnership
sharing
society
suffrage
voting