FAS, which stands for Fetal Alcohol Syndrome, is a serious condition caused by maternal alcohol consumption during pregnancy. However, there are several synonyms used to describe this condition, including Fetal Alcohol Spectrum Disorder (FASD), Alcohol-Related Neurodevelopmental Disorder (ARND), and Alcohol-Related Birth Defects (ARBD). These are all terms used to describe a range of conditions caused by prenatal alcohol exposure, including FAS, partial FAS (pFAS), and alcohol-related developmental disabilities (ARDD). It is important to use these terms correctly to understand the severity of the condition and to provide appropriate treatment to those affected.