Entry 1 sense Webster, 1913 Accoast /(ăk*kōst")/ · Ac·coast · IPA /əˈkəʊst/ 01 v. t. & i. To lie or sail along the coast or side of; to accost. 1. To lie or sail along the coast or side of; to accost.[Obs.] “Whether high towering or accoasting low.” — Spenser.