Definition of horizontal
- horizontal mergers
- horizontal hostility
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'horizontal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: positioned from side to side rather than up and down : parallel to the ground
What made you want to look up horizontal? Please tell us where you read or heard it (including the quote, if possible).
Merriam-Webster's New Words Quiz—Fall 2017 Edition!
Test your vocabulary with our 10-question quiz!TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.TAKE THE QUIZ