From Longman Dictionary of Contemporary Englishnon-memberˌnon-ˈmember noun [countable] someone who is not a member of a particular club or organization The price will be £30 for members, £33 for non-members.non-member of non-members of the Labour Partynon-member state/country imports from non-member countries
Examples from the Corpus
non-member• If a non-member challenged this obligation, a dispute would arise, which could then be investigated by the Security Council.• A non-member of an organisation must first determine the powers of the organisation and its organs. 