Word Games Pro Dictionary

theta

noun

The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.

Quick reference

Word Facts

Word length
5
Starts with
T
Ends with
A
Contains
HE
Scrabble score
8
Database source
OEWN 2025 Core

How it sounds

Pronunciation

/ˈθiːtə/ /ˈθeɪtə/

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Audio Pronunciation

Audio pronunciation is unavailable for this word.

Meaning

Definitions

noun

  1. The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.

  2. The measure of an angle.

  3. The sensitivity of the value of a derivative with respect to time; the "time decay".

  4. Designating a level of brain activity as measured by electroencephalography having a frequency of between four and seven cycles per second (associated with drowsiness in adults).

  5. The voiceless dental fricative represented by θ.

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