horizontally

Flat across, lengthwise

Horizontally means in a horizontal direction—parallel to the ground or to the horizon, rather than up and down.

A beam laid horizontally spans between two supports.

She stretched out horizontally on the couch.

The word contrasts with vertically: a list can scroll horizontally or vertically depending on layout.

alignment

parallel

Equidistant at all points

  • flushSame suit, five cards
  • alignedArranged in proper position
  • levelHorizontal or uniform position

straight · even · perpendicular · plumb · true · calibrated · justified · centered · coaxial · equidistant

surface

flat

Lacking vertical variation

  • planeWinged flying vehicle
  • levelHorizontal or uniform position
  • tabletopHorizontal furniture surface

shelf · countertop · floor · platform · deck · slab · ledge · bench · desktop · workbench

spread

stretched

Pulled to lengthen

spanning · reaching · arrayed · distributed · unfurled · splayed · widespread · broadened · dispersed · scattered

landscape

panorama

Unobstructed wide-angle view

prairie · steppe · savanna · tundra · pampas · tableland · mesa · plateau · flatlands · grassland

Categories
Opposites
spatial orientation

horizontallyvertically

In up-down direction

upright · uprightly · perpendicularly · straight up · erectly

angular direction

horizontallyvertically

In up-down direction

diagonally · obliquely · at an angle · perpendicularly · slantwise

Phrases
Family

horizontal, horizontality, horizontals

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G