English as a second or foreign language

English as a second or foreign language refers to the use of English by individuals whose native language is different, commonly among students learning to speak and write English. Variably known as English as a foreign language (EFL), English as a second language (ESL), English for speakers of other languages (ESOL), English as an additional language (EAL), or English as a new language (ENL), these terms denote the study of English in environments where it is not the dominant language. Programs such as ESL are designed as academic courses to instruct non-native speakers in English proficiency, encompassing both learning in English-speaking nations and abroad.

Teaching methodologies include teaching English as a foreign language (TEFL) in non-English-speaking countries, teaching English as a second language (TESL) in English-speaking nations, and teaching English to speakers of other languages (TESOL) worldwide. These terms, while distinct in scope, are often used interchangeably, reflecting the global spread and diversity of English language education. Critically, recent developments in terminology, such as English-language learner (ELL) and English Learners (EL), emphasize the cultural and linguistic diversity of students, promoting inclusive educational practices across different contexts.^{[citation needed]}

Methods for teaching English encompass a broad spectrum, from traditional classroom settings to innovative self-directed study programs, integrating approaches that enhance language acquisition and cultural understanding. The efficacy of these methods hinges on adapting teaching strategies to students' proficiency levels and contextual needs, ensuring comprehensive language learning in today's interconnected world.