What aspect of language does pragmatics address?

Pragmatics is a branch of linguistics that focuses on the social aspects of language use. It encompasses how context influences the interpretation of communication, including the speaker's intentions and the relationship between participants in a conversation. Through pragmatics, we explore how meaning is constructed not only through the words spoken but also through factors such as tone, context, and non-verbal cues. This includes understanding nuances such as politeness, sarcasm, and cultural references, which can significantly alter the intent and reception of a message.

The other aspects mentioned, such as word definitions, correct sentence formation, and sound production, pertain to different linguistic areas. Word definitions relate to semantics, correct sentence formation is part of syntax, and sound production concerns phonetics and phonology. Therefore, pragmatics specifically addresses the social use of language, making it the correct answer.