Definition of horizon
- sailing toward the horizon
- broaden your horizons
- opening up new horizons in the field of cancer research
We sailed toward the horizon.
The sun rose slowly over the eastern horizon.
These discoveries have opened up new horizons in the field of cancer research.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'horizon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 14th centurySee Words from the same year
the horizon : the line where the earth or sea seems to meet the sky
: the limit or range of a person's knowledge, understanding, or experience
: the limit of what is possible in a particular field or activity
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