Check Dictionary
Find out more about a word, its definitions, and word-game validity.
Dictionary Checker helps you quickly verify whether a word appears in the same local English word list used by our word tools.
Valid in These Word Lists
TWL/NWL compatible English word list
Local OneTimeRead word tools dictionary
Meaning of theta
noun
- The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.
- The measure of an angle.
- The sensitivity of the value of a derivative with respect to time; the "time decay".
- 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).
- The voiceless dental fricative represented by θ.
Source: Free Dictionary API.
What is a Dictionary Checker?
A dictionary checker verifies whether a typed word exists in a word list. It is useful for word games, puzzle checks, spelling checks, and quick vocabulary confirmation.
How It Works
The tool cleans the input, compares it against a local English word list, and then tries to load definitions from a free dictionary source when available.