a long area of water extending into the land from a larger body of water or between islands; an apparatus, place, for letting in water, gas etc
arm of the sea
Cases of word usage
1) a narrow inlet of water on the coast or in a river-bank (creek)
2) (especially in Scotland) a river estuary or sea inlet (firth)
3) a long, narrow inlet of the coast between high cliffs or mountains, especially in Norway (fjord)
4) a hole serving as an inlet or outlet for air, gas, liquid etc; a means of escape; an outlet for one's feelings (vent)