The cyanide group, also known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. This group is commonly found in organic compounds and has various synonyms, including the nitrile group, the carbonitrile group, and the isocyanide group. While the nitrile group and the carbonitrile group both refer to the cyano group, the isocyanide group refers to a different group of compounds where the nitrogen atom is attached to a carbon rather than a carbon triple-bonded to a nitrogen. Other synonyms for the cyanide group include the prussic acid group and the hydrogen cyanide group. Regardless of the synonym used, the cyanide group is known for its toxicity and is widely used in industry, particularly in the synthesis of organic compounds.