A Common Language: Proposing Terminology for E Cigarettes and The People Who Use Them Institute for Global Tobacco Control Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, Tar and nicotine content of e cigarettes and conventional cigarettes Download Table E Cigarette Nicotine Levels E Cig Brands