When it comes to synonyms for the phrase "north-north-west," there are a few options to choose from. Some traditional options include the phrases "n-n-w" or "north by northwest," though there are also more specific descriptions that might be useful, too. For example, the phrase "northeast by north" could be used to describe a slightly different directional emphasis. Alternatively, "west-northwest" may also be used to convey the same general direction. Depending on the context in which the phrase is being used, one of these synonyms might be more appropriate than the others. Regardless, all of these synonyms work to describe a specific direction between north and northwest.