Definition of "upright"

Fab[ell]: What meanes the tolling of this fatall chime, // O what a trembling horror ſtrikes my hart! // My ſtiffned haire ſtands vpright on my head, // As doe the briſtles of a porcupine.

1608, William Shakespeare, The merry Deuill of Edmonton, introduction, lines 1-4

Supported by pillows, ſhe ſat almoſt upright.

1782, Fanny Burney, Cecilia; or, Memoirs of an Heiress, volume V, Book X, chapter X: “A Termination”, page 372

Upright posture evolved well before an enlarged brain in hominids.

2006, Neil A. Campbell, Biology: concepts & connections, page 404

There was a man in the land of Uz, whose name was Job; and that man was perfect and upright, and one that feared God, and eschewed evil.

1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Job 1:1

Human locomotion had been presumed unique because we walk upright with two legs. When investigators led by Nadia Dominici analyzed the electrical activities produced by walking toddlers, preschoolers, and adults as well as newborns that were held upright and prodded to walk along a surface, however, they saw that we essentially follow the same chain of motor commands as several other animals, including rats, cats, monkeys, and guinea fowl.

2011 November 17, Hans Villarica, “A Rat's First Steps: How Humans and Other Animals Learn to Walk”, in The Atlantic‎, archived from the original on 2022-03-09

Those up for the ride stand upright on a small platform which shoots a powerful jet of water downwards, sending the attached board – which has in the past carried the likes of Leonardo DiCaprio – up into the air.

2014 July 15, Will Coldwell, “Ever wanted to walk on water? Five new aquatic sports for thrill seekers”, in The Guardian‎, archived from the original on 2022-06-29

For instance, parents were strongly encouraged to delay the introduction of complementary foods to six months when infants were able to sit upright and feed themselves safely.

2016 September 16, “Choking risk for baby-led weaning no different than spoon-feeding”, in CBC News‎, archived from the original on 2022-11-19

On the change in architectural forms from the pyramidal to the obeliscar, the fires were transferred from the altars, or cubes, to the summits of the typical uprights, or towers; […]

1942, Reuben Swinburne Clymer, The Philosophy of Fire, page 64

The video arcade machines are typically in stand up arcade cabinets, although some have been built as tables. The uprights have a monitor and controls in front and players insert coins or tokens into the machines to play the game.

2013, Jon Peddie, The History of Visual Magic in Computers, page 181