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Added 9 October 2026

thousandth

/ˈθaʊzən(d)θ/ noun

In Latin: millēsimus Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about thousandth at Wordnik → Where our words come from →

Position 1,000 in a countable series of things.
One part in a thousand equal parts.

adjective

The ordinal number of one thousand in counting order.

Origin

From thousand + -th (suffix forming an ordinal number).

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

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