TEFL -Teaching English as a Foreign Language - Certificate in graduating from a curriculum of teaching English as foreign language.

TESOL - Teachers of English to Speakers of Other Languages -Certificate of a teacher of English as non-mother tongue.

CELTA - Certificate in English Language Teaching to Adults - Certificate in graduating from a curriculum of teaching English as foreign language to adults.

PGCE IN ESOL - Post Graduate Certificate in Education regarding English for Speakers of Other Languages - equates to a MA of teaching English as non-mother tongue

QTS - Qualified Teacher Status - gives its owner a status of a qualified teacher.