"etas" in the noun sense
1. Basque Homeland and Freedom, Basque Fatherland and Liberty, Euskadi ta Askatasuna, ETA
a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party want to create an independent homeland in Spain's western Pyrenees
"in 1968 ETA launched a campaign of political assassinations of government officials"
the 7th letter of the Greek alphabet
Source: WordNet® (An amazing lexical database of English)
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