Most people work during the day and sleep at night.
3 a time in the past
In my grandparents' day, people didn't have cell phones. one day
on a certain day in the past One day, a letter arrived.
( also some day ) at some time in the future I hope to become a doctor one day.
Some day I'll be rich and famous. the day after tomorrow not tomorrow, but the next day the day before yesterday not yesterday, but the day before
the other day
a few days ago
I went to see my cousin the other day. these days ( informal )
used to talk about the present, especially when you are
comparing it with the past
These days kids grow up so quickly.
—SYNONYM nowadays
day • break / ' deibreik / noun [ noncount ]
the time of day when light first appears He left at daybreak .
day • care / ' deiker / ( also day care ) noun
[noncount]
care for small children while their parents are working; a place that offers this service a daycare center
My wife takes the kids to daycare every morning.
day • dream / ' deidrim / noun [ count ]
happy thoughts that make you forget about what you should be doing now
She stared out of the window, lost in a daydream . ► day • dream verb
( day • dreams , day dream • ing , day dreamed )
He daydreamed about being so rich that he could buy anything he wanted.
day • light / ' deilait / noun [ noncount ]
the light from the sun during the day These colors look different in daylight .
day off / |dei ' of / noun [count] ( plural days off )
a day when you do not go to work or school She hasn't taken a day off in six months.
day • time / ' deitaim / noun [noncount]
the time when it is day and not night I prefer to study in the daytime and go out at night.
—ANTONYM nighttime
daze / deiz / noun in a daze
not able to think normally; confused
I was in a daze, and walked into the street without looking.
dazed / deizd / adjective
not able to think normally; confused He had a dazed look on his face.
daz • zle / ' drezl / verb
( daz • zles , daz • zling , daz • zled )
to impress someone very much He was dazzled by her beauty.
Prefix
de-
( in verbs, and related nouns, adjectives, and adverbs ) removing something de caffeinated coffee de frost the refrigerator
dead © / ded / adjective
not alive now
All my grandparents are dead. Throw away those dead flowers.
no longer working because it doesn't have any power The batteries in this flashlight are dead.
I picked up the phone, but the line was dead.
very quiet
This town is completely dead at night.
complete
There was dead silence when she finished speaking.
a dead end
a street that is only open at one end
dead 2 / ded / adverb
( informal )
completely or very I'm dead tired.
dead • line / ' dedlain / noun [ count ]
a day or time before which you must do something The deadline for finishing this essay is next Tuesday.
dead • ly 1 / ' dedli / adjective ( dead • li • er , dead li • est )
Something that is deadly may kill people or other living things
a deadly weapon
dead • ly2 / ' dedli / adverb ( informal )
extremely
I'm deadly serious.
deaf / def / adjective ( deaf • er , deaf est ) ( health ) not able to hear anything or not able to hear very well
My grandma's starting to go deaf.