us·a·ble

[yoo-zuh-buhl]
adjective
1.
available or convenient for use: 2000 square feet of usable office space.
2.
capable of being used: That saw is no longer usable.
Also, useable.


Origin:
1350–1400; Middle English < Middle French; see use, -able

us·a·bil·i·ty, us·a·ble·ness, noun
us·a·bly, adverb
non·re·us·a·ble, adjective, noun
non·us·a·ble, adjective
re·us·a·bil·i·ty, noun
re·us·a·ble, adjective
re·us·a·ble·ness, noun
un·us·a·ble, adjective
un·us·a·ble·ness, noun
un·us·a·bly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To usability
00:10
Usability is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a fool or simpleton; ninny.
Collins
World English Dictionary
usable or useable (ˈjuːzəbəl) [Click for IPA pronunciation guide]
 
adj
able to be used
 
useable or useable
 
adj
 
usa'bility or useable
 
n
 
usea'bility or useable
 
n
 
'usableness or useable
 
n
 
'useableness or useable
 
n
 
'usably or useable
 
adv
 
'useably or useable
 
adv

usable or useable (ˈjuːzəbəl) [Click for IPA pronunciation guide]
 
adj
able to be used
 
useable or useable
 
adj
 
usa'bility or useable
 
n
 
usea'bility or useable
 
n
 
'usableness or useable
 
n
 
'useableness or useable
 
n
 
'usably or useable
 
adv
 
'useably or useable
 
adv

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
Etymonline
Word Origin & History

usable
1382, from O.Fr. usable (1311), from user (see use). Not a common word before c.1840.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
FOLDOC
Computing Dictionary

usability definition

programming
The effectiveness, efficiency, and satisfaction with which users can achieve tasks in a particular environment of a product. High usability means a system is: easy to learn and remember; efficient, visually pleasing and fun to use; and quick to recover from errors.
(http://orrnet.com/).
(1999-04-01)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
Example sentences
What those critics didn't count on, though, was the importance of usability.
Tech firms also hire people with psychology backgrounds as usability
  researchers.
Meier said his approach to measure usability could catch on and be used for
  many other products.
That's what libraries are good at: making resources available to meet patrons'
  needs, with minimum fuss and maximum usability.
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