The term "eye rings" refers to the dark circles or bags that often appear under the eyes due to lack of sleep, stress or aging. There are numerous synonyms for this phenomenon, such as raccoon eyes, panda eyes, tired eyes, dark circles, under-eye bags, and luggage under the eyes. Each of these terms has its own unique connotation and may be used in different contexts, whether in casual conversation or scientific research studies. While cosmetic or medical treatments may help reduce the appearance of eye rings, understanding the use of synonyms for the term allows individuals to communicate with greater clarity and precision.