The storage of fuel (especially for ships) in tanks, or the fee charged for such storage.
From 'bunker' (a storage tank) plus the suffix '-age' (like in 'storage' or 'drainage'), creating a noun describing both the action and the charge for fuel storage.
Bunkerage is a hidden cost in global shipping—every ship that refuels pays bunkerage fees, making it a massive international trade that most people never think about.
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