The term SCH. SUBJ. can be broken down into three separate parts: ENG (3 letters), SCI (3 letters), and GEOG (4 letters). ENG stands for English, which is a language subject that focuses on the study of literature, grammar, and writing. SCI stands for Science, which is a subject that covers a wide range of topics such as biology, chemistry, and physics. GEOG stands for Geography, which is a subject that studies the physical features of the Earth, as well as the human activities that take place on it. All three of these subjects are commonly taught in schools and universities.