par·a·noid

[par-uh-noid]
adjective
1.
of, like, or suffering from paranoia.
noun
2.
a person suffering from paranoia.
Also, par·a·noi·ac [par-uh-noi-ak, -ik] , par·a·noe·ac [par-uh-nee-ak, -ik] .


Origin:
1900–05; paranoi(a) + -oid, with base and suffix merged, perhaps by haplology from the expected *paranoioid

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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00:10
Paranoid 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.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
paranoid (ˈpærəˌnɔɪd) [Click for IPA pronunciation guide]
 
adj
1.  of, characterized by, or resembling paranoia
2.  informal exhibiting undue suspicion, fear of persecution, etc
 
n
3.  a person who shows the behaviour patterns associated with paranoia

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

paranoid
1904, irregularly formed from paranoia + -oid. As a noun, "a paranoid person," attested from 1922.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

paranoid par·a·noid (pār'ə-noid')
adj.
Relating to, characteristic of, or affected with paranoia. n.
One affected with paranoia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Don't be paranoid, but as a tourist you're conspicuous enough.
Possibly overly paranoid, but seeing a few lives ruined up close will do that.
The deeper we got into the forest, the more paranoid and frightened Roger got.
Nobody has rescued him from his paranoid fantasies either.
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