gulf Copy link Outline I. A bayII. An abyss • gulf: I. A bay: sĭnus, ūs, m. (where the land embraces the sea as in its bosom: used also of the land itself: hence maritimus must be used when necessary to clearness): to infest g.s, or promontories, or precipitous rocks, s. obsidere maritimos, aut promontoria, aut praerupta saxa, Cic. Verr. 5, 56, 145: the g. of Paestum, s. Paestanus, Cic. Att. 16, 6, init.: Plin. II. An abyss: q. v.