Wiktionary
north by west
n. The compass point halfway between north and north-northwest, specifically 348.75°, abbreviated as NbW.
WordNet
north by west
n. the compass point that is one point west of due north [syn: NbW]
Usage examples of "north by west".
Two hours after dawn the next day, four logboats plied the waters of the broad stream north by west from Redwall.
He staggered to the binnacle, noting that the wind vanes had disappeared, wiped the compass glass and saw the ship was steering north by west.
She was well off the Danish coast, steaming north by west to rejoin her NATO allies.