WordNet (r) 3.0 (2006):

PLO
    n 1: a political movement uniting Palestinian Arabs in an effort
         to create an independent state of Palestine; when formed in
         1964 it was a terrorist organization dominated by Yasser
         Arafat's al-Fatah; in 1968 Arafat became chairman; received
         recognition by the United Nations and by Arab states in
         1974 as a government in exile; has played a largely
         political role since the creation of the Palestine National
         Authority [syn: Palestine Liberation Organization, PLO]