[eytth, eyth]


next after the seventh.
being one of eight equal parts.


an eighth part, especially of one (⅛).
the eighth member of a series.
Music. octave.


in the eighth place; eighthly.

Origin of eighth

before 1000; Middle English eightethe, Old English eahtotha; cognate with Old High German ahtoda, Old Norse āttandi, Gothic ahtud-. See eight, -th2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for eighth

Contemporary Examples of eighth

Historical Examples of eighth

  • Some said it was in the Eighth Ward; others located it in the Seventeenth.

  • The three regiments parading were the Eighth, Ninth and Twenty-fourth.


    Scian Dubh

  • On the eighth day of the assizes there were but fifty of us left in the wool warehouse.

    Micah Clarke

    Arthur Conan Doyle

  • Not a stick was there nearer than an eighth of a mile across the bay.

  • Of the fifth, the sixth and the eighth daughters nothing further is known.

British Dictionary definitions for eighth



(usually prenominal)
  1. coming after the seventh and before the ninth in numbering or counting order, position, time, etc; being the ordinal number of eight: often written 8th
  2. (as noun)the eighth in line


  1. one of eight equal or nearly equal parts of an object, quantity, measurement, etc
  2. (as modifier)an eighth part
the fraction equal to one divided by eight (1/8)
another word for octave


Also: eighthly after the seventh person, position, event, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for eighth

late 14c., eighthe, from Old English eahtoða; see eight + -th (1). Cf. Old High German ahtoda, Old Frisian achta, German achte, Gothic ahtuda.

Online Etymology Dictionary, © 2010 Douglas Harper