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thirty (EN)
číslovka, podstatné meno

číslovka “thirty”

thirty, 30
  1. tridsať
    There are thirty days in November.

podstatné meno “thirty”

jednotné thirty, 30, množné thirties, 30s
  1. (americký slang) balenie tridsiatich pív
    They bought a thirty to share at the party.