"Capful of wind" refers to a quantity or gust of wind that is sufficient to fill a cap or hat. Some synonyms for this term include "puff of wind," "gust of wind," "blast of wind," "breeze," "draft," "zephyr," "wisp," "whiff," and "current." These adjectives can be used to describe the intensity, direction, and duration of the wind, such as "strong capful of wind," "cold capful of wind," or "gentle capful of wind." Other related terms include "flutter," "flurry," and "swirl," which denote the movement or agitation of air or wind. Overall, capful of wind and its synonyms can add descriptive flair to outdoor writing, poetry, and even weather reports.