Masks come in many different forms, each with their own synonyms. Some synonyms for the word "mask" include disguise, veil, camouflage, cover, shield, and barrier. A disguise is a mask that is used to hide someone's identity, while a veil covers the face and hair. Camouflage masks are used to blend in with the environment, while a cover can hide an entire face or just a part of it. Shield and barrier masks protect the wearer from outside substances, and can range from surgical masks to gas masks. The use of masks has become increasingly important in recent times to help prevent the spread of diseases, making synonyms for "mask" an important tool for communication when discussing health and safety measures.