plo has 1 distinct synonym spread across 1 of its 1 sense. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
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
Synonyms, antonyms and the broader and narrower relations for plo come from Princeton University’s WordNet. Full sources and licences.