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.

Jun 13, 2026 · 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. 2. a. Parallel to or in the …

hor•i•zon•tal (hôr′ə zon′ tl, hor′-), adj. at right angles to the vertical; parallel to level ground. flat or level: a horizontal position. being in a prone or supine position; recumbent: His bad back has kept him …

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

Definition of HORIZONTAL in the Definitions.net dictionary. Meaning of HORIZONTAL. What does HORIZONTAL mean? Information and translations of HORIZONTAL in the most comprehensive …

Jun 2, 2026 · horizontal (comparative more horizontal, superlative most horizontal) Perpendicular to the vertical; parallel to the plane of the horizon; level, flat.

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

6 meanings: 1. parallel to the plane of the horizon; level; flat. → Compare vertical (sense 1) 2. of or relating to the horizon.... Click for more definitions.