a dishonest, knavish person; scoundrel.
a playfully mischievous person; scamp: The youngest boys are little rogues.
a tramp or vagabond.
a rogue elephant or other animal of similar disposition.
Biology. a usually inferior organism, especially a plant, varying markedly from the normal.
verb (used without object), rogued, roguing.
to live or act as a rogue.
verb (used with object), rogued, roguing.
to cheat.
to uproot or destroy (plants, etc., that do not conform to a desired standard).
to perform this operation upon: to rogue a field.
(of an animal) having an abnormally savage or unpredictable disposition, as a rogue elephant.
no longer obedient, belonging, or accepted and hence not controllable or answerable; deviating, renegade: a rogue cop; a rogue union local.

1555–65; apparently short for obsolete roger begging vagabond, orig. cant word

outrogue, verb (used with object), outrogued, outroguing.
underrogue, noun

rogue, rouge.

1. villain, trickster, swindler, cheat, mountebank, quack. See knave. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To rogue
World English Dictionary
rogue (rəʊɡ)
1.  a dishonest or unprincipled person, esp a man; rascal; scoundrel
2.  jocular often a mischievous or wayward person, often a child; scamp
3.  a crop plant which is inferior, diseased, or of a different, unwanted variety
4.  a.  any inferior or defective specimen
 b.  (as modifier): rogue heroin
5.  archaic a vagrant
6.  a.  an animal of vicious character that has separated from the main herd and leads a solitary life
 b.  (as modifier): a rogue elephant
7.  a.  (tr) to rid (a field or crop) of plants that are inferior, diseased, or of an unwanted variety
 b.  to identify and remove such plants
[C16: of unknown origin; perhaps related to Latin rogāre to beg]

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
Word Origin & History

1561, "idle vagrant," perhaps a shortened form of roger (with a hard -g-), thieves' slang for a begging vagabond who pretends to be a poor scholar from Oxford or Cambridge, perhaps from L. rogare "to ask." Another theory traces it to Celtic (cf. Bret. rog "haughty"); OED says, "There is no evidence of
connexion with F. rogue 'arrogant.' " Rogue's gallery "police collection of mug shots" is attested from 1859.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Computing Dictionary

rogue definition

[Unix] A Dungeons-and-Dragons-like game using character graphics, written under BSD Unix and subsequently ported to other Unix systems. The original BSD "curses(3)" screen-handling package was hacked together by Ken Arnold to support "rogue(6)" and has since become one of Unix's most important and heavily used application libraries. Nethack, Omega, Larn, and an entire subgenre of computer dungeon games all took off from the inspiration provided by "rogue(6)". See also nethack.
[Jargon File]

The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Example sentences
Even rogue-books began to multiply the artifices of narration.
Computers online tend to get hacked, of course, and you wouldn't want your
  local power plant under rogue control.
But one rogue scientist, ordering by mail, could transform this material into a
  biological weapon.
Loudspeakers blared a warning not to run the rogue program, but it was too late.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature