•A track; a trail; a way; a path; also, passage; travel; resort.•Course; custom; practice; occupation; employment.•Business of any kind; matter of mutual consideration; affair; dealing.•Specifically: The act or business of exchanging commodities by barter, or by buying and selling for money; commerce; traffic; barter.•The business which a person has learned, and which he engages in, for procuring subsistence, or for profit; occupation; especially, mechanical employment as distinguished from the liberal arts, the learned professions, and agriculture; as, we speak of the trade of a smith, of a carpenter, or mason, but not now of the trade of a farmer, or a lawyer, or a physician.•Instruments of any occupation.•A company of men engaged in the same occupation; thus, booksellers and publishers speak of the customs of the trade, and are collectively designated as the trade.•The trade winds.•Refuse or rubbish from a mine.•To barter, or to buy and sell; to be engaged in the exchange, purchase, or sale of goods, wares, merchandise, or anything else; to traffic; to bargain; to carry on commerce as a business.•To buy and sell or exchange property in a single instance.•To have dealings; to be concerned or associated; -- usually followed by with.•To sell or exchange in commerce; to barter.•imp. of Tread.

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