I. hor ‧ i ‧ zon ‧ tal 1 /ˌhɒrəˈzɒntl◂, ˌhɒrɪˈzɒntl◂ $ ˌhɑːrəˈzɑːntl◂/ BrE AmE adjective
flat and level:
a horizontal surface
—horizontally adverb
⇨ diagonal
, vertical
• • •
THESAURUS
▪ flat on one level, without any holes or raised areas, and not sloping or curving:
a flat roof
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a flat screen
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Before you lay the tiles, make sure that the ground is completely flat.
▪ level not sloping in any direction, so that every part is at the same height:
Is the top of this picture level?
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After four hours coming down the mountain, I was glad to be back on level ground.
▪ smooth without any holes or raised areas – used especially when saying how something feels when you touch it:
her lovely smooth skin
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I ran my hand across the animal’s smooth fur.
▪ even without any holes or raised areas:
Apply the paint to an even surface.
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Be careful – the path is not very even here.
▪ horizontal going straight across and not sloping:
a horizontal line
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Raise both arms to a horizontal position.
II. horizontal 2 BrE AmE noun
1 . [countable] a horizontal line or surface
2 . the horizontal a horizontal position:
eleven degrees below the horizontal