| ESL | English as a Second Language |
| EFL | English as a Foreign Language |
| ESOL | English for Speakers of Other Languages |
| TESL | Teaching English as a Second Language |
| TEFL | Teaching English as a Foreign Language |
| TESOL | Teaching English to Speakers of Other Languages |
| LEP | Limited English Proficiency |
| TOEFL | Test Of English as a Foreign Language |
| CELTA | Certificate in English Language Teaching to Adults |
| CTEFLA | Certificate in Teaching English as a Foreign Language to Adults |
| ELT | English Language Teaching |
| RSA | Royal Society of Arts |
| UCLES | University of Cambridge Local Examinations Syndicate |