[uhp-rahyt, uhp-rahyt]
erect or vertical, as in position or posture.
raised or directed vertically or upward.
adhering to rectitude; righteous, honest, or just: an upright person.
being in accord with what is right: upright dealings.
the state of being upright or vertical.
something standing erect or vertical, as a piece of timber.
Usually, uprights. Chiefly Football. the goalposts.
in an upright position or direction; vertically.
verb (used with object)
to make upright.

before 900; Middle English, Old English upriht (cognate with German aufrecht). See up, right

uprightly, adverb
uprightness, noun
nonupright, adjective, noun
nonuprightly, adverb
nonuprightness, noun

1. plumb. Upright, erect, vertical, perpendicular imply that something is in the posture of being straight upward, not leaning. That which is upright is in a position corresponding to that of a person standing up: a decaying tree no longer standing upright; an upright piano. Erect emphasizes the straightness of position or posture: proud and erect; A flagpole stands erect. Vertical suggests upward direction, especially along the shortest line from the earth to a level above it: the vertical edge of a door; ornamented by vertical lines. Perpendicular a term frequently interchangeable with vertical is used especially in mathematics: the perpendicular side of a right triangle; to erect a perpendicular line from the base of a figure. 3. honorable. 6. pole, prop, pier, pile, column.

1. leaning, horizontal.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
upright (ˈʌpˌraɪt)
1.  vertical or erect
2.  honest, honourable, or just
3.  vertically
4.  a vertical support, such as a stake or post
5.  short for upright piano
6.  the state of being vertical
7.  (tr) to make upright

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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Word Origin & History

O.E. upriht, from up "up" + riht "right." Similar compounds are found in other Gmc. languages (cf. O.Fris. upriucht, M.Du. oprecht, O.H.G. ufreht, Ger. aufrecht, O.N. uprettr). Fig. sense of "good, honest" is first attested 1530. The noun in the sense of "something standing erect" is from 1742.
"THREE-PENNY UPRIGHT. A retailer of love, who, for the sum mentioned, dispenses her favours standing against a wall." ["Dictionary of the Vulgar Tongue," 1811]
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Idioms & Phrases


see bolt upright.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
But it may be worth remembering that lying flat on your back is unarguably more
  stable than standing upright.
He is considered an upright and honorable gentleman.
Durable as they had been, the fossil footprints, the earliest indisputable
  evidence of upright walking by human.
Since the rungs fit between the uprights either way round, the quits attached
  to a given upright can come in any order.
Idioms & Phrases
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