Language and languages Philosophy 109 Study and teaching 53 Sociolinguistics 41 Linguistics 36 Applied linguistics 19 Second language acquisition 19 Language policy 15 Semantics (Philosophy) 14 English language 13 Language and education 12 Psycholinguistics 12 Grammar, Comparative and general 11 Education 10 Sex differences 9 Logic, Symbolic and mathematical 8 Origin 8 Semantics 8 Semiotics 8 Discourse analysis 7 Logic 7 Style 7 Analysis (Philosophy) 6 Communication 6 History 6 Human evolution 6 Knowledge, Theory of 6 Literature 6 Meaning (Philosophy) 6 Philosophy of mind 6