Light air refers to a meteorological term used to describe wind conditions where the wind speed is between 0 and 1 knot. This type of wind is usually barely noticeable and can lead to uneventful sailing conditions. There are several synonyms for light air, including calm, stillness, and dead air. Other synonyms include gentle breeze, zephyr, and puff. These terms are often used interchangeably in weather reports and forecasts, and can play an important role in planning outdoor activities like boating or kite flying. Regardless of the term used, light air conditions are best suited for relaxed sailing or leisure activities where calm and stillness are preferred over more wind-driven activities.