A hollow place in the earth; an abyss; a deep chasm or basin,
- A large area of a sea or ocean partially enclosed by land, especially a long landlocked portion of sea opening through a strait.
- A deep, wide chasm; an abyss.
- A wide gap, as in understanding: "the gulf between the Victorian sensibility and our own” ( Babette Deutsch).
- Something, such as a whirlpool, that draws down or engulfs.
- To engulf.