Skin/skɪn/ Definition 1 of 5Pro Tip 1/3Body Protection Remember 'skin' also refers to its role in defending the body from injury or disease. Always wear sunscreen to protect your skin from harmful UV rays. Pro Tip 2/3Human Focus 'Skin' usually connotes to human skin in conversation unless specified otherwise. Her skin was glowing after the treatment. Pro Tip 3/3Indicator of Emotion Skin can indicate feelings; goosebumps or blushing skin show emotion without words. You could see his skin turn red with embarrassment.