English Reference
adjective · noun

horizontal

adj. · n.
US /ˌhɔɹəˈzɑntəɫ/ UK /hˌɒɹɪzˈɒntəl/ hor·i·zon·tal

  1. 01 B1 Intermediate

    adj.flat and level; parallel to the ground rather than going up and down.

    adj.parallel to the plane of the horizon; at right angles to the vertical.

    Simple

    The carpenter used a tool to make sure the shelf was perfectly horizontal.

    In context

    The architect emphasised the horizontal lines of the building to help it blend into the flat landscape of the surrounding plains.

  2. 02 C2 Proficiency Technical Music

    adj.describing music where notes are played one after another in a melody.

    adj.relating to the sequential progression of notes in a melody rather than the simultaneous notes of a chord.

    Simple

    The teacher explained that a melody is a horizontal arrangement of notes.

    In context

    The composer focused on the horizontal development of the fugue, ensuring each melodic line remained distinct within the polyphonic texture.

  3. 03 C1 Advanced Technical Medicine

    adj.the spread of a disease between individuals of the same generation.

    adj.relating to the transmission of an infectious agent between members of the same generation, rather than from parent to offspring.

    Simple

    The virus spread through horizontal transmission among the students in the dorm.

    In context

    Public health officials monitored the horizontal transmission of the pathogen within the community to determine if social distancing measures were effective.

  4. 04 C1 Advanced HumorousInformal

    adj.a polite or funny way to talk about sex.

    adj.used as a euphemism for sexual activity, referring to the typical physical position during intercourse.

    Simple

    They were enjoying some horizontal exercise on their afternoon off.

    In context

    The tabloid used a variety of horizontal metaphors to describe the celebrity's latest romantic scandal without being explicitly graphic.

  5. 05 B2 Upper Intermediate

    n.a part of a structure or a line that is flat and level.

    n.a horizontal line, plane, or structural component.

    Simple

    The artist drew several strong horizontals to represent the sea.

    In context

    The engineer checked the horizontals of the steel frame to ensure the weight was distributed evenly across the foundation.

Usage horizontal axis · horizontal line


Borrowed from Middle French horizontal, from horizon, horizonte, from Latin horizōn (stem horizont-).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin horizōn
Level B1 · Intermediate
Frequency Frequent
Updated