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Phrases with «blue box»
The phrase
"blue box"
refers to a small device used to make free long-distance phone calls by replicating the tones used by telephone networks.
Full definition
box
(parent phrase)
blue
(parent phrase)
blue box
Related phrases
little blue box
Sentences with «blue box»
To get them, enter your email address in the
little blue box
on the bottom left of your screen.
(
completehumanperformance.com
)
Don't be concerned about the red and
blue boxes at
the top.
(
travelcodex.com
)
We therefore used the data to see if any schools matched this profile (
see blue box
below).
(
schoolsweek.co.uk
)
(see all sentences)
See also
Definition of BLUE BOX
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