Etimology
From Middle English day, from Old English dæġ (“day”), from Proto-West Germanic *dag, from Proto-Germanic *dagaz (“day”); see there for more. Cognate with Saterland Frisian Dai (“day”), West Frisian dei (“day”), Dutch dag (“day”), German Low German Dag (“day”), Alemannic German Däi (“day”), German Tag (“day”), Swedish, Norwegian and Danish dag (“day”), Icelandic dagur (“day”), Gothic 𐌳𐌰𐌲𐍃 (dags, “day”). Possible cognates beyond Germanic relatives include Albanian djeg (“to burn”), Lithuanian degti (“to burn”), Tocharian A tsäk-, Russian жечь (žečʹ, “to burn”) from *degti, дёготь (djógotʹ, “tar, pitch”), Sanskrit दाह (dāhá, “heat”), दहति (dáhati, “to burn”), Latin foveō (“to warm, keep warm, incubate”). Latin diēs is a false cognate; it derives from Proto-Indo-European *dyew- (“to shine”).
noun
day (plural days)
The time when the Sun is above the horizon and it lights the sky.
A period of time equal or almost equal to a full day-night cycle.
(informal or meteorology) A 24-hour period beginning at 6am or sunrise.
A period of time between two set times which mark the beginning and the end of day in a calendar, such as from midnight to the following midnight or (Judaism) from nightfall to the following nightfall.
(astronomy) The rotational period of a planet.
The part of a day period which one spends at one’s job, school, etc.
A specified time or period; time, considered with reference to the existence or prominence of a person or thing; age; time; era.
A period of contention of a day or less.
Examples
Synonyms: daylight, upsun; see also Thesaurus:daytime
Antonyms: night; see also Thesaurus:nighttime
day and night; I work at night and sleep during the day.
The day was cool and snappy for August, and the Rise all green with a lavish nature. Now we plunged into a deep shade with the boughs lacing each other overhead, and crossed dainty, rustic bridges over the cold trout-streams, […].
Synonym: nychthemeron
I've been here for two days and a bit.
Your 8am forecast: The high for the day will be 30 and the low, before dawn, will be 10.
Synonyms: see Thesaurus:day
The day begins at midnight.
Monday is the first day of the week in many countries of the world.
A day on Mars is slightly over 24 hours.
I worked two days last week.
“ […] if you call my duds a ‘livery’ again there'll be trouble. It's bad enough to go around togged out like a life saver on a drill day, but I can stand that 'cause I'm paid for it. What I won't stand is to have them togs called a livery. […]”
Synonyms: era, epoch; see also Thesaurus:era
every dog has its day; in that day; back in the day; in those days
This new-comer was a man who in any company would have seemed striking. […] Indeed, all his features were in large mold, like the man himself, as though he had come from a day when skin garments made the proper garb of men.
If they had no more food than they had had in Jones's day, at least they did not have less.
In his senior year, he had run across an old '66 Chevy Super Sport headed for the junkyard, bought it for a song, and overhauled it with his dad's help, turning it into the big red muscle car it was back in its day.
The day belonged to the Allies.
Related words
hypernyms
month
time
week
year
hyponyms
Apple Gifting Day
arm day
back day
bad hair day
Bastille Day
birthday
Boxing Day
bridal day
calendar day
Canada Day
cardio day
chest day
Christmas Day
civil day
Commitment Day
core day
day game
Day of Atonement
Day of Judgment
day of reckoning
day of rest
Days of Awe
days of grace
D-Day
dollar day
doomsday
duvet day
feast day
field day
flag day
Flag Day
foreday
Friday
heyday
holiday
holy day
it is not every day
it's not every day
judgment day
lifeday
loveday
lower body day
May Day
midday
Monday
name day
New Year's Day
noonday
one day
payday
polling day
race day, raceday
rainy day
rest day
saint's day
Saturday
scambling day
sick day
solar day
someday
St. Andrew's Day
St. David's Day
St. George's Day
St. Patrick's Day
St. Stephen's Day
Sunday
synodic day
the other day
Thursday
total body day
Tuesday
Twelfth Day
upper body day
Victoria day
wedding day
Wednesday
weekday
workday
working day
workout day
holonyms
calendar month
calendar year
hebdomad
triduum
week
related terms
Friday
Monday
Saturday
Sunday
Thursday
Tuesday
Wednesday
verb
day (third-person singular simple present days, present participle daying, simple past and past participle dayed)
(rare, intransitive) To spend a day (in a place).
Examples
I nighted and dayed in Damascus town[.]