What is another word for balloon sail?
Pronunciation: [bəlˈuːn sˈe͡ɪl] (IPA) 
Balloon sail is a term commonly used in the context of hot air balloons and other types of aerial vehicles to describe a flexible canopy that helps in lifting and guiding the vehicle in the sky. However, there are several synonyms for the term balloon sail that can be used interchangeably. Some of these synonyms include envelope, canopy, fabric, sailcloth, airbag, and pilot balloon. These terms are often used to describe the same flexible material that helps in controlling the vehicle's direction and altitude. Overall, the use of these synonyms for balloon sail can help to add variety to written or spoken language while conveying the same idea.
