Definition of co-ownership in US English:

co-ownership

noun

  • The state or right of owning something jointly with another or others.

    ‘we want you to take co-ownership of the industry’
    as modifier ‘a co-ownership arrangement’
    count noun ‘alliances and co-ownerships are useful for promotion’

Pronunciation

co-ownership

/ˌkōˈōnərˌSHip//ˌkoʊˈoʊnərˌʃɪp/