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Definition of oath

oath

/oʊθ/
oath
Plural:oaths
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oath Lexical Profile

oath Game Scores & Validity

• noun

1

A solemn promise or formal declaration, often invoking a divine witness, regarding one's future action or the truthfulness of one's testimony.

Example

"Every witness must take an oath to tell the truth before testifying in a court of law."

2

A profane or offensive word or phrase used to express anger, frustration, or surprise.

Example

"He muttered an oath under his breath when he accidentally dropped the heavy toolbox."

Synonyms
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Antonyms
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• Rhymes for oath

• Nearby Words

oasis snake
oat
oatcake
oath
oatmeal
oatmeal falls
oaty

Word Origin & Etymology

From Old English āth ('judicial swearing, solemn appeal to deity in witness of truth or a promise'), originating from Proto-Germanic *aithaz, a root shared with Old Norse eithr and German Eid.

Cite this Entry

Wordmom. (2026). Definition of Oath. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/oath
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