eleventh

American  

[ih-lev-uhnth] / ɪˈlɛv ənθ /

adjective

1. next after the tenth; being the ordinal number for 11.

2. being one of 11 equal parts.

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noun

1. an eleventh part, especially of one (1/11).

2. the eleventh member of a series.

eleventh British  

/ ɪˈlɛvənθ /

adjective

1. (usually prenominal)

   1. coming after the tenth in numbering or counting order, position, time, etc; being the ordinal number of eleven: often written 11th

   2. ( as pronoun )

      the eleventh in succession

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noun

1. 1. one of 11 equal or nearly equal parts of an object, quantity, measurement, etc

   2. ( as modifier )

      an eleventh part

2. the fraction equal to one divided by 11 ( 1/ 11 )

3. music

   1. an interval of one octave plus one fourth

   2. See eleventh chord

Etymology

Origin of eleventh

before 1000; Middle English enleventh, enlefte, Old English endlyfta (akin to Old Frisian andlofta, Old Saxon ellifto ). See eleven, -th ²

Example Sentences

It will hold separate elections for some voters based on how their districts have been changed at the eleventh hour.

From Slate • Jun. 3, 2026

Oil futures took another swift dive on Tuesday as world leaders consider releasing emergency supplies as the Iran conflict stretched into an eleventh day.

From MarketWatch • Mar. 10, 2026

The North Carolina plant is "Toyota's eleventh manufacturing facility in the US, representing an investment of nearly $14 billion and the creation of up to 5,100 new jobs," it said.

From Barron's • Nov. 13, 2025

An eleventh person went to the hospital later.

From BBC • Nov. 4, 2025

On November 11 at eleven a.m.—the eleventh hour of the eleventh day of the eleventh month—the guns fell silent on the Western Front.

From "The War to End All Wars: World War I" by Russell Freedman