Alcohol, derived from Arabic "al-kuḥl," refers to a group of chemical compounds that contain a hydroxyl (OH) functional group bound to a carbon atom. It is commonly known as ethanol and is found in alcoholic beverages. Alcohol has been consumed for thousands of years by various cultures for recreational, cultural, and medicinal purposes. It is a central nervous system depressant that can cause temporary euphoria and relaxation but also has the potential for addiction and negative health effects when consumed excessively. It is used as a solvent, fuel source, and disinfectant in various industries, but its abuse can lead to social, physical, and psychological issues.