This document defines key terms related to language teaching and learning: - Total Physical Response (TPR) is a language teaching method using physical actions. - Mother tongue refers to a person's native language, while target language is one they are learning. - Digital literacy is the ability to use language skills with technology. - Multiple intelligences are different learning styles according to Howard Gardner's theory. - English as a foreign language (EFL) uses English outside an English-speaking country, while English as a second language (ESL) refers to English learned in an English-speaking setting.