Aspects of a language I divide a language to several aspects: - Speaking (grammar rules, style ...) - Pronunciation (consonant and vowel patterns, linking ...) - Writing (grammar rules, style, abilities to write essay, letters, to express your thoughts etc...) - Listening (ability to parse speaking patterns, dialects) - Reading - Passive and active dictionary (the more the better - Idioms and slang - Body language - Cultural characteristics Do you have something to add up? Do not hesitate! Welcome to comments.