Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.
How to sign: at right angles to the plane of the horizon or a base line
"a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height";
Similiar / Same: vertical
How to sign: a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point
Similiar / Same: plumb line