buffer state From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences Definitionsnoun(geopolitics) A nation lying between potentially hostile nations. Related wordsSynonymsbuffer countrypseudo-statepseudostatesemistateparastatestate within a statestateletnation statenation-statepurple statemegastateoverseas territorystatebalkanizationgeopolitical entitysatellite state References Wiktionary — buffer state Wikipedia — buffer state