The term 'distinctive mark' can refer to a variety of things, including physical marks, such as scars, and intangible qualities, such as an AURA. The crossword solutions for this term are SCAR (4 letters), AURA (4 letters), and AURAS (5 letters). A SCAR is a permanent mark on the skin that is usually caused by an injury or surgery. An AURA is an intangible quality that is associated with a person or thing, often described as a feeling or atmosphere. Auras can be positive or negative.