no heckin clue
A ditch is a narrow water channel. It begins with the letter d.
no heckin clue
Kelt
straight, strait
The homophone for direct, not crooked, narrow, natural channel of water is "strait."
a channel
Kyle means "narrow, straight".
The homophone for "direct" is "dye rect", and for "narrow" it is "narrow". A natural channel of water is called a "creek".
fjord
River
Starboard side
The narrow channel of sea which separates two landmasses is known as Strait