One that is used at times is ess - for instance, when describing the shape of a type of curve in a road. In general they are fairly obvious. Bee Cee Dee Ef Gee Em En Tee The two lists below have slight differences. The first seems more AE oriented and the second more BE oriented. For instance: Y = wye in the first and wy in the second More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.