The word Tetrazo is spelled with a "t" at the beginning followed by an "e" and "t" again. The "ra" is pronounced with a short "a" sound /æ/ and the "z" is pronounced as /z/ sound. The last letter is an "o" sound /oʊ/. The word is not commonly used, but is often referenced in chemistry as a compound made of nitrogen and carbon. It is important to use correct spelling in technical fields, such as chemistry, to maintain accuracy and precision in communication.