3 verb
Related topics: Baseball
1 [intransitive and transitive] to become twice as big or twice as much, or to make something twice as big or twice as much
double in size/number/value etc
Within two years the company had doubled in size.
The church has doubled its membership in the last five years.
double the size/number/amount etc (of something)
A promise was given to double the number of police on duty.
2 [transitive] also double over/up to fold something in half:
Take a sheet of paper and double it over.
3 [intransitive]DSB to hit the ball far enough to get to second base in a game of baseball

double as somebody/something

phrasal verb
to have a second use, job, or purpose as a particular thing:
The school doubled as a hospital during the war.

double back

phrasal verb
to turn around and go back the way you have come:
The driver doubled back and headed for Howard Bay.
double back on yourself
We kept getting lost and having to double back on ourselves.

double up

phrasal verb
1 also double over to suddenly bend over at the waist because you are laughing so much or are in pain:
Emilio doubled over, grabbing his leg.
be doubled up/over with laughter/pain etc
Both the girls were doubled up with laughter.
2 to share something, especially a bedroom
double up with
You'll have to double up with Susie while your aunt is here.

Dictionary results for "double"
Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.