English

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English numbers (edit)
 ←  1,000,000 (106) [a], [b] ←  1,000,000,000 (109) 1012 1015  → [a], [b] 1018  → [a], [b]
    Cardinal: trillion, billion
    Ordinal: trillionth, billionth
    Multiplier: trillionfold, billionfold
    Metric collective prefix: tera-
    Metric fractional prefix: pico-

Etymology

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trillion +‎ -th

Pronunciation

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Adjective

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trillionth (not comparable)

  1. The ordinal form of the number one trillion.

Translations

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Noun

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trillionth (plural trillionths)

  1. The person or thing in the trillionth position.
  2. One of a trillion equal parts of a whole.