in ‧ let /ˈɪnlet, ˈɪnlət/ BrE AmE noun [countable]
[ Date: 1200-1300 ; Origin: Because it lets water in ]
1 . a narrow area of water that reaches from the sea or a lake into the land:
There are several sheltered inlets along the coast.
2 . the part of a machine through which liquid or gas flows in OPP outlet :
a fuel inlet