English numbers (edit)
300
 ←  20  ←  29 30 31  →  40  → 
3
    Cardinal: thirty
    Ordinal: thirtieth

Pronunciation

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Adjective

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Positive
thirtieth

Comparative
none

Superlative
none

  1. (ordinal number) The thirtieth thing is the one that is number thirty (30) in order.