n. The act of preferring or choosing one thing rather than another, or the state of being preferred or chosen; estimation of one thing above another; choice.n. Specifically, in law, the payment or right to have payment of one debt or class of debtsmade by a debtor or out of his estate, in full, before any of the assets are applied to unpreferred debts: as, the debtor's assignment gave a preference to demands for borrowed money; the state has a preference for taxes.n. The object of choice; a person, thing, or course of action chosen preferably to others.n. In the game of boston, one of the two suits of the color of the card turned up, just after the first deal.n. A European game of cards, something like boston.