Narrow \Nar"row\, n.; pl. Narrows. A narrow passage; esp., a contracted part of a stream, lake, or sea; a strait connecting two bodies of water; -- usually in the plural; as, The Narrows of New York harbor.

Near the island lay on one side the jaws of a dangerous narrow. --Gladstone.

Source: Webster's Revised Unabridged Dictionary (1913)