A narrow channel is a type of waterway that is typically shallow and has a small width. The crossword solutions for the term 'narrow channel' include 'stria' (5 letters), 'GROOVE' (6 letters), 'kyle' (4 letters), 'DITCH' (5 letters), 'GAT' (3 letters), and 'STRAIT' (6 letters). All of these terms refer to a narrow channel, with 'stria' referring to a long, thin GROOVE, 'GROOVE' referring to a long, narrow cut in a surface, 'kyle' referring to a narrow sea channel between two islands, 'DITCH' referring to a long, narrow trench, 'GAT' referring to a narrow channel of water, and 'STRAIT' referring to a narrow passage of water connecting two larger bodies of water.