next after the fifty-ninth; being the ordinal number for 60.
being one of 60 equal parts.
a sixtieth part, especially of one (1/60).
the sixtieth member of a series.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sixtieth in a sentence
The sixtieth anniversary issue of the magazine hits newsstands in December.Naomi Campbell Channels Michelle Obama For W Magazine; Miranda Kerr and Orlando Bloom Split | The Fashion Beast Team | October 25, 2013 | THE DAILY BEAST
Up there, the lights on the sixtieth floor gleamed in the night.The Penal Cluster | Ivar Jorgensen (AKA Randall Garrett)
The sweating may be controlled by small doses of atropia, from the one-sixtieth to the one-thirtieth of a grain.Scientific American Supplement No. 299 | Various
If you serve with the troops, of whom I judge you to be a scout, you should know of such a regiment of the king as the sixtieth.The Last of the Mohicans | James Fenimore Cooper
He was nearing his sixtieth year now, and he looked and seemed much older.
Across the street was the Lasser Building; high up on the sixtieth floor, a whole suite of offices was brightly lit.The Penal Cluster | Ivar Jorgensen (AKA Randall Garrett)
British Dictionary definitions for sixtieth
being the ordinal number of sixty in numbering or counting order, position, time, etc: often written 60th
(as noun): the sixtieth in a row
one of 60 approximately equal parts of something
(as modifier): a sixtieth part
the fraction equal to one divided by 60 (1/60)
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