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surcharge
surcingle
surcoat
surd
sure
sure-fire
sure-footed
sure thing
surely
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surf
surf and turf
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surface runoff
sur·face run·off


noun 
Definition:
 
flow of surplus rainwater over ground: the flow of water over the surface of the ground occurring when rainfall is not absorbed into the soil or evaporated
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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