thetan.
A soul, spirit or being.
Meaning & usage
A soul, spirit or being.
Where this word comes from
c. Mid 20th c., Coined by Scientology founder L. Ron Hubbard, from theta + -n, from Ancient Greek θῆτα (thêta, “theta”), used in Scientology to represent the source of life.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.