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.

Whovians know that the Christmas Day specials are a longstanding tradition for the sci-fi series.

From Los Angeles Times • Jun. 10, 2026

Another resident Maggie Rose Day, 25, caught the moment the lightning struck the house on video.

From BBC • Jun. 9, 2026

By Labor Day, SpaceX will have a couple of months as a public company under its belt.

From Barron's • Jun. 9, 2026

At 8 a.m. on Memorial Day, I boarded a plane in Kentucky after a family visit and landed at O’Hare two hours later.

From Salon • Jun. 9, 2026

Day one had been a success, in some ways.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin