theta
noun
Simple meaning
The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
Pronunciation
Say it like this:
thaytuhSay the bold part a little louder.
IPA pronunciation (US)
ˈθeɪtə
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
mathematics
The measure of an angle.
aviationby extension
Pitch angle; the angle between an aircraft's longitudinal axis and the horizontal plane.
uscolloquial
A member of the Kappa Alpha Theta sorority.
Word at a Glance
- Difficulty
- B1 · Intermediate (estimated)
- Frequency
- Moderately Common
- Typical Use
- Neutral / general English
Word Aura™
How this word commonly comes across.
Aura for this meaning
This meaning: The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
Used this way, theta is a reasonably familiar word that usually carries little praise or criticism of its own. It usually sounds natural in a wide range of settings.
- Emotional tone
- Neutral
- Formality
- Neutral
- Intensity
- Not strongly marked
- How common
- Moderately common
- Connotation
- Matter-of-fact
- Usage feel
- Neutral and straightforward
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
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Common Patterns and Combinations
How this word naturally appears with others.
Word Family
Related forms, grouped by how they connect.
Compound terms
Established multiword terms.
The normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy.
The normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy.
Related Words
Connected to the same idea, not synonyms.
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.