tuff

1
[tuhf]
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tuffest

Historical Examples of tuffest


British Dictionary definitions for tuffest

tuff

noun
  1. a rock formed by the fusing together on the ground of small rock fragments (less than 2 mm across) ejected from a volcano
Derived Formstuffaceous (tʌˈfeɪʃəs), adjective

Word Origin for tuff

C16: from Old French tuf, from Italian tufo; see tufa
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 tuffest

tuff

adj.

advertiser's spelling of tough (adj.), attested by 1940.

Online Etymology Dictionary, © 2010 Douglas Harper

tuffest in Science

tuff

[tŭf]
  1. A rock made up of particles of volcanic ash, varying in size from fine sand to coarse gravel.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.