eleventh

adjective

1. next after the tenth; being the ordinal number for 11.
2. being one of 11 equal parts.

noun

3. an eleventh part, especially of one (1/11).
4. the eleventh member of a series.

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

noun

2. 1. one of 11 equal or nearly equal parts of an object, quantity, measurement, etc
   2. (as modifier)an eleventh part
3. the fraction equal to one divided by 11 (1/11)
4. music
   1. an interval of one octave plus one fourth
   2. See eleventh chord

adj.

late 14c., eleventhe, superseding earlier ellefte (c.1300), enlefte (early 13c.), from Old English endleofta; see eleven + -th (1).