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Definition of horizontal

horizontal

/ˌhɔːr.əˈzɑːn.təl/
hor · i · zon · tal

Adverb:horizontally
•
Plural:horizontals
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horizontal Lexical Profile

horizontal Game Scores & Validity

• adjective

1

Parallel to the plane of the horizon; at right angles to a vertical line; level or flat.

Example

"The carpenter used a spirit level to ensure that the newly installed bookshelf was completely horizontal."


2

Involving or relating to entities, departments, or individuals at a similar level of status, hierarchy, or stage of production.

Example

"The airline pursued horizontal integration by acquiring two regional carriers operating in the same market."

Synonyms
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Antonyms
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• noun

1

A horizontal line, plane, bar, or position.

Example

"The modernist painting relies on a bold grid of intersecting verticals and horizontals."

Antonyms
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• Rhymes for horizontal

Word Origin & Etymology

Borrowed in the mid-16th century from Middle French horizontal, from Late Latin horizontalis, derived from Latin horizon (from Ancient Greek horizōn kyklos, meaning 'bounding circle').

Cite this Entry


Wordmom. (2026). Definition of Horizontal. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/horizontal
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