How do you spell vertical?

The correct spelling is V-E-R-T-I-C-A-L. Perpendicular to the plane of the horizon or to a primary axis : upright

What does vertical mean?

Perpendicular to the plane of the horizon or to a primary axis : upright

vertical

Source: Merriam-Webster Dictionary API

Middle French or Late Latin; Middle French, from Late Latin verticalis, from Latin vertic-, vertex

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