27-letter words containing u, n, r, d
- united nations organization — the United Nations. Abbreviation: UNO, U.N.O.
- united service organization — a private, non-profit organization that provides morale and recreational services to members of the US military, with programmes in 140 centres worldwide
- weapons of mass destruction — nuclear, biological and chemical arms
- yeoman of the (royal) guard — a member of a ceremonial guard for the British royal family, made up traditionally of 100 men