Google + cardboard box

box

1

container

 [countable] a container for putting things in, especially one with four stiff straight sides

cardboard/wooden/plastic etc box

a strong cardboard box

toolbox/shoebox/matchbox etc (=a box used for keeping tools etc in)

2

amount

also boxful [countable] the amount of something contained in a box

box of

a box of chocolates

3

shape

 [countable]

a) a small square on a page for people to write information in:

Put an 'X' in the box if you would like to join our mailing list.

b) a square or rectangle on a page where information is given or where an answer can be written:

The box on the left gives a short history of the battle.

4

in a court/theatre etc

 [countable] a small area of a theatre or court that is separate from where other people are sitting:

the jury box

5

small building

 [countable] a small building or structure used for a particular purpose [= booth]:

a sentry box

telephone box British English

6

at a post office

 box 25/450 etc

a box with a number in a post office, where you can have letters etc sent instead of to your own address[= PO Box]

7

sports field

 [countable usually singular] a special area of a sports field that is marked by lines and used for a particular purpose:

the penalty box

8

protection

 [countable] British English a piece of plastic that a man wears over his sex organs to protect them when he is playing a sport, especially cricket

9

tree

 [uncountable and countable] a small tree that keeps its leaves in winter and is often planted around the edge of a garden or field:

a box hedge

10

television

 the box

informal the television:

What's on the box tonight?

11

 be out of your box

British English informal to be very drunk or have taken an illegal drug

➔ black box

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.