Definition of upright
(Entry 1 of 3)
1a
: perpendicular, vertical
b
: erect in carriage or posture
c
: having the main axis or a main part perpendicular
upright freezer
2
: marked by strong moral rectitude
an upright citizen
upright
adverbDefinition of upright (Entry 2 of 3)
: vertically upward : in an upright position
upright
nounDefinition of upright (Entry 3 of 3)
1
: the state of being upright : perpendicular
a pillar out of upright
2
: something that stands upright
especially
: a football goalpost
—usually used in plural
3
: upright piano
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Merriam-Webster unabridged
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Time Traveler for upright
The first known use of upright was before the 12th century
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