noun
sunup
SUH-nuhp
noun
1
Sunrise; the time the sun comes up.
"The farmers were out in the fields from sunup to sundown."
How to Use Sunup
Learner’s notesIn plain EnglishAnother word for sunrise, often paired with "sundown" to mean "all day".
When to use it
More common in American English, especially in rural or old-fashioned speech.
Easily confused with
Common pairings
from sunup to sundown
Word Forms
sunups plural
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The farmers were out in the fields from _____ to sundown.
Etymology
A simple compound of sun + up, describing the sun coming up.