Winter air is a term used to describe the COLD, crisp air that is often associated with winter. The crossword solutions for this term are NOEL (4 letters), COL (3 letters), CAROL (5 letters), and LEON (4 letters). NOEL is a French word meaning Christmas, and is often used as a name for people born around the holiday season. Col is a shortened form of the word 'COLD', which is often used to describe the temperature during winter. CAROL is a festive song or hymn, usually sung during the Christmas season. Leon is a name derived from the Greek word for lion, and is often used as a name for people born in the winter months.