Very-lights are handheld pyrotechnic flares used to signal during distress situations. However, there are several synonyms that can be used for very-lights such as signal flares, distress flares, and emergency flares. These synonyms are interchangeable and serve the same purpose as very-lights, allowing people to signal for help in emergency situations. Signal flares are commonly used in maritime and aviation fields to alert other vessels or airplanes of their location and call for assistance. Distress flares, on the other hand, are used specifically in emergency situations to signal for rescue. No matter what they are called, these flares are a valuable tool for those who find themselves in need of assistance.