Skin problems in #english: freckles, pimples or dark circles? Dark circles Meaning: Dark areas under the eyes. They often appear when you are tired or stressed. Sentence: • I have dark circles because I did not sleep well. Freckles Meaning: Small, light-brown spots on the skin. They are natural and common, especially in the sun. Sentence: • She has freckles on her nose and cheeks. Pimples Meaning: Small red or white bumps on the skin, usually caused by blocked pores. Sentence: • He has a pimple