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English definition of “stand by ”

stand by

phrasal verb with stand     /stænd/ verb (stood, stood)
[I] to be ready to do something: The Central Bank was standing by, ready to intervene to prevent a further slide against the dollar .
[T] to show that you still believe or support something: We stand by our view that rates may need to rise to 5% next year . The Government lost a lot of voters because it failed to stand by its election promises .
(Definition of stand by from the Cambridge Business English Dictionary © Cambridge University Press)
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