“The major problem at Sergius Narrows is the narrowness of the passage and presence of a rock reef which requires abrupt maneuvering in a dangerously constricted area with strong tidal currents.”
“The narrowness of the hairs gives some indication as to which species it may have originated from.”
“To some, this incident may seem to imply a narrowness of mind, quite out of keeping with his reputation as a great theologian.”
narrow
(plural) A narrow passage, especially a contracted part of a stream, lake, or sea; a strait connecting two bodies of water.