Meaning of “horizontal” in the English Dictionary

"horizontal" in British English

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horizontaladjective

uk /ˌhɒr.ɪˈzɒn.təl/ us /ˌhɔːr.ɪˈzɑːn.t̬əl/

C1 parallel to the ground or to the bottom or top edge of something:

Draw a horizontal line across the bottom of the page.
Keep the patient horizontal with the feet slightly raised.

More examples

  • On this graph, time is on the horizontal X-axis, and distance is on the vertical Y-axis.
  • Try to avoid wearing clothes with horizontal stripes as they're really not flattering.
horizontally
adverb uk /ˌhɒr.ɪˈzɒn.təl.i/ us /ˌhɔːr.ɪˈzɑːn.t̬əl.i/

horizontalnoun [ C usually singular ]

uk /ˌhɒr.ɪˈzɒn.təl/ us /ˌhɔːr.ɪˈzɑːn.t̬əl/

(Definition of “horizontal” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"horizontal" in American English

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horizontaladjective [ not gradable ]

us /ˌhɔr·əˈzɑn·təl, ˌhɑr-/

flat or level; parallel with the ground:

Keep the patient in a horizontal position with her feet slightly raised.
horizontally
adverb /ˌhɔr·əˈzɑn·təl·i, ˌhɑr-/

(Definition of “horizontal” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"horizontal" in Business English

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horizontaladjective

uk /ˌhɒrɪˈzɒntəl/ us

something that is horizontal goes across, level to the ground, rather than up or down:

Horizontal drilling has given the oil industry a way to extract oil from places where it was once almost impossible.

relating to companies, departments, etc. that have the same activities as each other:

a horizontal agreement/alliance

relating to a company or organization that has few or no different levels of management:

The horizontal organization allows participants to solve many problems themselves.

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(Definition of “horizontal” from the Cambridge Business English Dictionary © Cambridge University Press)