Reefed sail is a term used in sailing which refers to reducing the size of the sail by folding or rolling it to adjust the amount of wind it can catch. Some synonyms for reefed sail are shortened sail, reduced sail, trimmed sail, rolled sail, or furled sail. These terms are often used interchangeably, and they all indicate a smaller sail size to manage the wind and maintain control of the vessel. The process of reefing a sail involves lowering the sail down, tightening it with lines or reef points, and securing it in place to prevent further unfurling. Knowing these synonyms can enhance one's sailing terminology and improve communication among crew members.