Wiktionary
north-northwest
alt. The compass bearing or compass point halfway between north and northwest, specifically 337.5°, abbreviated as NNW. n. The compass bearing or compass point halfway between north and northwest, specifically 337.5°, abbreviated as NNW.
WordNet
north-northwest
adv. to, toward, or in the north-northwest [syn: nor'-nor'-west]
Usage examples of "north-northwest".
It was heading north-northwest on a curve that would bring it to the deer trail above them.
Seas were under two meters, and she was under a full head of steam heading north-northwest, great clouds of gray-white steam leaving a kilometer-long double line from her twin stacks.