thirteenth meaning: definition, etymology

thirteenth

adj

UK /ˌθɜːˈtiːnθ/ · US /ˌθɝˈtiːnθ/

Etymology Inherited from Middle English thrittenthe, thrittethe, from Old English þrēottēoþa; equivalent to thirteen + -th (ordinal suffix).

The ordinal form of the number thirteen.

Synonyms: 13th, XIIIth, XIII
Derived terms: Friday the thirteenth, thirteenth grade, thirteenthly, thirteenth reason, thirteenth reason why

noun

Etymology Inherited from Middle English thrittenthe, thrittethe, from Old English þrēottēoþa; equivalent to thirteen + -th (ordinal suffix).

The person or thing in the thirteenth position.

One of thirteen equal parts of a whole.

Entertainment, Lifestyle, Music The interval comprising an octave and a sixth.

In dates The thirteenth day of a month.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.