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Dictionary
back up
▪
provide support for someone or something
▪
confirm or corroborate a statement or theory
▪
make a spare copy of data or a disk
▪
(of vehicles) form a line due to congestion
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cause vehicles to form a line due to congestion
▪
be experiencing a backlog of work or other things that need to be dealt with
▪
move or drive backward
▪
explain the background of a situation or return to an earlier point in an account
▪
(of running water) accumulate behind an obstruction
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