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buoyage

noun buoy·age \ ˈbüi‧ij , ˈbu̇i(‧i)j , ˈbȯi‧ij \
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Definition of buoyage

plural -s
1 a : buoys
b : a system of buoys (as for marking a channel)
2 : the fee for the use of a buoy for mooring a boat

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