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Added 10 October 2026

seventeenth

/ˌsɛvənˈtiːnθ/ adjective

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about seventeenth at Wordnik → Where our words come from →

The ordinal form of the number seventeen.

noun

One of seventeen equal parts of a whole.
A seventeeth of 340 is 20.
An interval of two octaves and a third.

Origin

Inherited from Middle English sevententhe, seventethe, from Old English seofontēoþa, equivalent to seventeen + -th.

From Wiktionary, via Kaikki.org (CC BY-SA)

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