IPA: //ˈsʌn.tæn//
KK: /ˈsʌnˌtæn/
A brown color on the skin that happens when someone spends time in the sun.
After a week at the beach, she came back with a beautiful suntan.
Suntan → It is formed from "sun" (from Old English "sunne", meaning the star that provides light and warmth) and "tan" (from Old English "tannian", meaning to make or become). The word "suntan" refers to the process of skin becoming darker due to exposure to the sun's rays.
Think of the 'sun' making your skin 'tan' — that's how you remember that suntan means the darkening of skin from sun exposure.