double

A2Frequent NGSL-2
UK /ˈdʌbl/US /ˈdʌbl/

Meaning

adjective
twice as much or as many as usual
a double helping
adverb
in twos or in two parts
I thought I was seeing double (= seeing two of something).
determiner
twice as much or as many as
His income is double hers.
pronoun
a number or amount that is twice as much or as many as another number or amount
He gets paid double for doing the same job I do.
verb
to become, or make something become, twice as much or as many
Membership almost doubled in two years.

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then double-checking that they're right

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