narrows
n. plural-only C1 Advanced US //ˈnɛɹoʊz// UK //nˈæɹəʊz// nar·rows
n. a thin part of a river or a sea where the water gets much tighter between two pieces of land.
n. a restricted part of a navigable waterway, such as a strait or a section of a river, where the banks converge.
The ship slowed down as it entered the narrows.
Navigating the narrows requires a skilled pilot because the current becomes much stronger where the channel tightens.
The fortress was strategically positioned overlooking the narrows to control all maritime traffic entering the inner harbor.
Usage
Plural in form and typically takes a plural verb; often used as a proper name for specific geographical locations.