Second language acquisition Study and teaching Acquisition 18 Langue seconde 18 Étude et enseignement 17 Language and languages 15 Langage et langues 11 LANGUAGE ARTS & DISCIPLINES 7 Linguistics 6 FOREIGN LANGUAGE STUDY 5 General 5 Allophones 4 EDUCATION 4 Foreign speakers 4 Ability testing 3 Tests d'aptitude 3 Alphabets & Writing Systems 2 Applied linguistics 2 Distance, Open & Online Education 2 EDUCATION / Distance & Online Education 2 Grammar & Punctuation 2 Language teachers 2 Multi-Language Phrasebooks 2 Open educational resources 2 Phonetics & Phonology 2 Prononciation 2 Prononciation par des allophones 2 Pronunciation 2 Pronunciation by foreign speakers 2 Readers 2