The term 'WIND DIR.' is an abbreviation for wind direction, which is the direction from which the wind is blowing. The crossword solutions for this term are ENE (3 letters), NNW (3 letters), ESE (3 letters), NNE (3 letters), SSE (3 letters), SSW (3 letters), and WSW (3 letters). These abbreviations stand for east-northeast, north-northwest, east-southeast, north-northeast, south-southeast, south-southwest, and west-southwest, respectively.