Doubling a cape, promontory, etc. (Naut.), sailing around or passing beyond a cape, promontory, etc.
Doub*loon" (?), n. [F. doublon, Sp. doblon. See Double, a., and cf. Dupion.] A Spanish gold coin, no longer issued, varying in value at different times from over fifteen dollars to about five. See Doblon in Sup.
Dou"bly (?), adv. 1. In twice the quantity; to twice the degree; as, doubly wise or good; to be doubly sensible of an obligation. Dryden.