Outline of second-language acquisition

The following outline is provided as an overview of and topical guide to second-language acquisition:

Second-language acquisition – process by which people learn a second language. Second-language acquisition (often abbreviated to SLA) also refers to the scientific discipline devoted to studying that process. Second language refers to any language learned in addition to a person's first language, including the learning of third, fourth, and subsequent languages. It is also called second-language learning, foreign language acquisition, and L2 acquisition.