off·shore / ˈôfˈshôr; ˈäf-/ • adj. & adv. 1. situated at sea some distance from the shore: [as adj.] this huge stretch of coastline is dominated by offshore barrier islands | [as adv.] we dropped anchor offshore. ∎ (of the wind) blowing toward the sea from the land. ∎ of or relating to the business of extracting oil or gas from the seabed: offshore drilling.2. made, situated, or conducting business abroad, esp. in order to take advantage of lower costs or less stringent regulation: [as adj.] deposits in offshore accounts. ∎ of, relating to, or derived from a foreign country: [as adj.] offshore politics.