- flat and level; going across and parallel to the ground rather than going up and down
- horizontal lines
- (informal) I was so tired, I just wanted to be horizontal (= lying down).
Oxford Collocations DictionaryHorizontal is used with these nouns:- arrow
- axis
- beam
- …
- having a structure in which all people, activities, etc. are on the same level
- The new CEO wants to introduce a more horizontal management structure.
Word Originmid 16th cent. (originally meaning something of or at the horizon): from French, or from modern Latin horizontalis, from late Latin horizon, horizont-, from Greek horizōn (kuklos) ‘limiting (circle)’.
Check pronunciation:
horizontal