Sal·ly, n.; pl. Sallies
 1. A leaping forth; a darting; a spring.
 2. A rushing or bursting forth; a quick issue; a sudden eruption; specifically, an issuing of troops from a place besieged to attack the besiegers; a sortie.
    Sallies were made by the Spaniards, but they were beaten in with loss.   --Bacon.
 3. An excursion from the usual track; range; digression; deviation.
    Every one shall know a country better that makes often sallies into it, and traverses it up and down, than he that . . . goes still round in the same track.   --Locke.
 4. A flight of fancy, liveliness, wit, or the like; a flashing forth of a quick and active mind.
    The unaffected mirth with which she enjoyed his sallies.   --Sir W. Scott.
 5. Transgression of the limits of soberness or steadiness; act of levity; wild gayety; frolic; escapade.
    The excursion was esteemed but a sally of youth.   --Sir H. Wotton.
 Sally port. (a) Fort. A postern gate, or a passage underground, from the inner to the outer works, to afford free egress for troops in a sortie. (b) Naval A large port on each quarter of a fireship, for the escape of the men into boats when the train is fired; a large port in an old-fashioned three-decker or a large modern ironclad.
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