Noun hayastan has 1 sense
  1. Armenia, Republic of Armenia, Hayastan - a landlocked republic in southwestern Asia; formerly an Asian soviet; modern Armenia is but a fragment of ancient Armenia which was one of the world's oldest civilizations; throughout 2500 years the Armenian people have been invaded and oppressed by their neighbors
    --1 is a kind of Asian country, Asian nation
    --1 is a part of Asia
    --1 is a member of Commonwealth of Independent States, CIS
    --1 has parts:
     Armenian Church, Armenian Apostolic Orthodox Church; Yerevan, Jerevan, Erivan, capital of Armenia; Aras, Araxes
    --1 has members: Armenian
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