•L1 First Language •L2 Second Language •CLT Communicative Language Teaching •CLIL Content and Language Integrated Learning •EAP English for academic purposes •EFL English as a foreign language •ELL English language learner •ESL English as a second language •ESOL English for speakers of other languages •ESP English for specific purposes •CLT Communicative Language Teaching •SLA Second Language Acquisition •CALL Computer Assisted Language Learning •TOEIC Test of English for International Communication •TEFL Teaching English as a Foreign Language •TESL Teaching English as a Second Language •TESOL Teaching English to Speakers of Other Languages •ELT English language training or teaching •TOEFL Test of English as a Foreign Language •TTT Teacher talking time •TWE test of written English •STT Student Talking Time