diz·zy

[diz-ee] adjective, diz·zi·er, diz·zi·est, verb, diz·zied, diz·zy·ing.
adjective
1.
having a sensation of whirling and a tendency to fall; giddy; vertiginous.
2.
bewildered; confused.
3.
causing giddiness or confusion: a dizzy height.
4.
heedless; thoughtless.
5.
Informal. foolish; silly.
verb (used with object)
6.
to make dizzy.
00:10
Dizziness is always a great word to know.
So is quincunx. Does it mean:
a gadget; dingus; thingumbob.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

Origin:
before 900; Middle English dysy, Old English dysig foolish; cognate with Low German düsig stupefied

diz·zi·ly, adverb
diz·zi·ness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
dizzy (ˈdɪzɪ) [Click for IPA pronunciation guide]
 
adj , -zier, -ziest
1.  affected with a whirling or reeling sensation; giddy
2.  mentally confused or bewildered
3.  causing or tending to cause vertigo or bewilderment
4.  informal foolish or flighty
 
vb , -zier, -ziest, -zies, -zying, -zied
5.  (tr) to make dizzy
 
[Old English dysig silly; related to Old High German tusīg weak, Old Norse dos quiet]
 
'dizzily
 
adv
 
'dizziness
 
n

dizzy (ˈdɪzɪ) [Click for IPA pronunciation guide]
 
adj , -zier, -ziest
1.  affected with a whirling or reeling sensation; giddy
2.  mentally confused or bewildered
3.  causing or tending to cause vertigo or bewilderment
4.  informal foolish or flighty
 
vb , -zier, -ziest, -zies, -zying, -zied
5.  (tr) to make dizzy
 
[Old English dysig silly; related to Old High German tusīg weak, Old Norse dos quiet]
 
'dizzily
 
adv
 
'dizziness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

dizzy
O.E. dysig "foolish, stupid," from P.Gmc. *dusijaz. Meaning "having a whirling sensation" is from mid-14c.; that of "giddy" is from c.1500 and seems to merge the two earlier meanings. Used of the "foolish virgins" in early translations of Matthew xxv; used especially of blondes since 1870s.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

dizziness diz·zi·ness (dĭz'ē-nĭs)
n.
A disorienting sensation such as faintness, light-headedness, or unsteadiness.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Slang Dictionary

dizzy definition


  1. mod.
    stupid; scatterbrained. : Who is that dizzy dame?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
Cite This Source
Example sentences
Vertigo is a sensation of motion or spinning that is often described as
  dizziness.
These drugs do share some side effects with other antidepressants, including
  dizziness and dry mouth.
Over the following year, her disease progressed rapidly, and she became
  confined to a wheelchair because of intractable dizziness.
The common symptoms of nausea, vomiting and dizziness can be prevented and
  treated, however.
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