n. The space or degree to which a thing is or may be extended; length; compass; bulk; size; limit: as, the extent of a line; a great extent of country or of body; the utmost extent of one's ability.n. Communication; distribution; bestowal.n. In law: Valuation; specifically, a census or general valuation put upon lands, for the purpose of regulating the proportion of public subsidies or taxes exigible from them, as well as for ascertaining the amount of the casualties due to the superior.n. A peculiar remedy to recover debts of record due to the crown, differing from an ordinary writ of execution at the suit of a subject, in that under it the body, lands, and goods of a debtor may be all taken at once, in order to compel the payment of the debt.n. Logical extension or breadth.n. A violent attack.Extended.To assess; lay on or apportion, as an assessment.To be assessed; be rated for assessment.n. The length and the breadth (of power, greatness, duty, or the like).