The document discusses English as a Foreign Language (EFL). It defines EFL as the teaching and learning of English in countries where it is not an official language. Bangladesh is given as an example, as English is taught but is not the official medium. The key difference between EFL and English as a Second Language (ESL) is outlined, with ESL referring to learning English in countries where it is already the main language. Practical examples of learning situations for EFL and ESL are provided.