Definition of horizontal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

HORIZONTAL definition: 1. parallel to the ground or to the bottom or top edge of something: 2. a horizontal line…. Learn more.

The meaning of HORIZONTAL is of or relating to the apparent junction of earth and sky : situated near the horizon. How to use horizontal in a sentence.

Define horizontal. horizontal synonyms, horizontal pronunciation, horizontal translation, English dictionary definition of horizontal. adj. 1. Of, relating to, or near the horizon.

Feb 14, 2026 · Adjective horizontal (comparative more horizontal, superlative most horizontal) Perpendicular to the vertical; parallel to the plane of the horizon; level, flat. horizontal lines

of or pertaining to a position or individual of similar status: He received a horizontal promotion to a different department, retaining his old salary and title.

Horizontal definition: Of, relating to, or near the horizon.

Horizontal generally refers to a direction or orientation that is parallel to the ground or a flat surface. It can also refer to something that is at the same level or on the same plane as a …

HORIZONTAL definition: at right angles to the vertical; parallel to level ground. See examples of horizontal used in a sentence.

The opposite of vertical, something horizontal is arranged sideways, like a person lying down. When you sleep (unless you're a horse), your body is horizontal: horizontal things are parallel …