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Definitions

day

[dey] / deɪ /
NOUN
light part of every 24 hours
Synonyms
STRONG
daylight daytime light sunlight sunshine
WEAK
astronomical day bright dawn-to-dark diurnal course early bright light of day mean solar day nautical day sidereal day sunrise-to-sunset working day
Antonyms
STRONG
darkness night
WEAK
evening
NOUN
era
Synonyms
STRONGEST
period term time
STRONG
age ascendancy cycle epoch generation height heyday prime years zenith
Antonyms
STRONG
bottom nadir
WEAK
evening night

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"The difference between now and 10 years ago is like night and day,", said Tin Oo, a motorbike taxi driver in Yangon's industrial district of Hlaing Tharyar.

From BBC • Apr. 2, 2026

But shares jumped 2.9% Thursday after starting the day in the red.

From Barron's • Apr. 2, 2026

The fuel shortage is especially tough for businesses in Myanmar because so many depend on generators for power; the electricity grid provides only a few hours of power a day in most of Yangon.

From BBC • Apr. 2, 2026

Super Micro missed out on the second day of market gains Wednesday, falling 1.1%.

From Barron's • Apr. 2, 2026

I wasn’t happy when he told me that his orientation was the same day as the meet.

From "Red Flags and Butterflies" by Sheryl Azzam

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.