vertical
1 adj Something that is vertical stands or points straight up., (Antonym: horizontal)
The gadget can be attached to any vertical or near vertical surface.
♦
vertically adv ADV after v
Cut each bulb in half vertically.
2 n-sing The vertical is the direction that points straight up, at an angle of 90 degrees to a flat surface.
the N
Pluto seems to have suffered a major collision that tipped it 122 degrees from the vertical.
Translation English - Cobuild Collins Dictionary  

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"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"