noun: The situation in a futures market where prices for future delivery are higher than prices for immediate (or nearer) delivery, indicating the expectation that the price of the underlying asset will go up.
noun: The amount by which prices for future delivery are higher than prices for near delivery.
noun: (obsolete, London Stock Exchange) Fee paid by a buyer to the seller on settlement day when the buyer wishes to defer settlement until the next settlement day.
verb: (obsolete, London Stock Exchange, transitive, intransitive) To charge (a buyer) a fee to defer settlement until the next settlement day.