before 900; Middle English fiftenthe (see fifteen, -th2); replacing Middle English fiftethe, Old English fīftēotha Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To fifteenth
World English Dictionary
fifteenth (ˈfɪfˈtiːnθ)
1.  a.  coming after the fourteenth in order, position, time, etc. Often written: 15th
 b.  (as noun): the fifteenth of the month
2.  a.  one of 15 equal or nearly equal parts of something
 b.  (as modifier): a fifteenth part
3.  the fraction equal to one divided by 15 (1/15)
4.  a.  an interval of two octaves
 b.  one of two notes constituting such an interval in relation to the other, esp the one higher in pitch
 c.  an organ stop of diapason quality sounding a note two octaves higher than that normally produced by the key depressed; a two-foot stop

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Example sentences
He was burned at the stake in the fifteenth century for heresy.
At the time, scientists were split between two explanations for sudden
  appearance of syphilis at the end of the fifteenth century.
There are some nuclear particles that only show up once in ten to the fifteenth
  power number of particle interactions.
Literacy was already widely-disseminated in the fifteenth century.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature