See also: θ, θ', ө, ѳ, and

Θ U+0398, Θ
GREEK CAPITAL LETTER THETA
Η
[U+0397]
Greek and Coptic Ι
[U+0399]

Translingual

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Symbol

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Θ

  1. (set theory) Θ, the ordinal number with the same cardinality as the smallest set larger than the real numbers; the smallest nonzero ordinal number such that there exists no surjection onto it from the real numbers.
  2. (physics) A pentaquark.
  3. (speech pathology) Protruded tongue.

Ancient Greek

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Etymology

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From Phoenician 𐤈 (, ṭēt).

Letter

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Θ (Th) (uppercase, lowercase θ)

  1. The letter theta (θῆτα), the eighth letter of the ancient Greek alphabet.

Derived terms

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See also

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Greek

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Letter

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Θ (Th) (uppercase, lowercase θ)

  1. The upper case letter theta (θήτα), the eighth letter of the modern Greek alphabet.

Numeral

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Θ (Th)

  1. The number nine in Greek numerals.

Derived terms

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  • (,Th, The number 9000 in Greek numerals)

Descendants

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See also

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Wakhi

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Pronunciation

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Letter

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Θ (lower case ϑ)

  1. A letter of the Wakhi alphabet, written in the Latin script.
  NODES
Note 1