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surge
/sɜːdʒ/
noun
A sudden transient rush, flood or increase.
"He felt a surge of excitement."
The maximum amplitude of a vehicle's forward/backward oscillation
A sudden electrical spike or increase of voltage and current.
"A power surge at that generator created a blackout across the whole district."
Synonymsinrush
verb
To rush, flood, or increase suddenly.
"Toaster sales surged last year."
To accelerate forwards, particularly suddenly.
"A ship surges forwards, sways sideways and heaves up."
To slack off a line.
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