north northwest north·north·west uncommon noun (1) adverb (1) noun 1. the compass point that is midway between north and northwest Synonymsnorth northwestnor'-nor'-westNNW adverb 1. to, toward, or in the north-northwest Synonymsnor'-nor'-west Related words Broader terms compass point WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.