Definition
Discourse analysis is the modern linguistic and social-scientific study of language as it is used in social context — extended texts and exchanges rather than isolated sentences. It emerged in the second half of the 20th century from several converging sources: structural linguistics (Saussure, Jakobson), speech-act theory (Austin, Searle), the sociology of language (Goffman), and the post-structuralism associated with Michel Foucault. It has multiple sub-traditions — conversation analysis, critical discourse analysis (CDA), pragmatic discourse analysis, sociolinguistic discourse analysis — each with its own toolkit.
The discipline shares territory with rhetoric but approaches it from a different angle. Where classical rhetoric was prescriptive (how to persuade well) and analytical from the speaker's side, discourse analysis is descriptive and empirical, studying the actual texts of newspapers, interviews, political speeches, courtroom transcripts, internet exchanges, doctor-patient consultations — anywhere language carries social work. It is the closest living academic descendant of rhetoric in the modern university.
Why it matters
How it works
A discourse-analytic study typically begins with a corpus — a set of recorded conversations, news articles, speeches, parliamentary debates, or online exchanges — and asks specific questions of it. How are participants positioned by the language used? What is foregrounded and what is backgrounded? What presuppositions does the text take for granted? How does this text echo or contest other texts (intertextuality)? What identities and power relations are enacted in the exchange?
The toolkit includes attention to lexical choice (why 'freedom fighter' rather than 'insurgent'), grammatical voice (active or passive, who is the agent), modality (must, may, might), implicature (what is implied without being said), and intertextual echo (which prior texts does this one invoke). The result is a structured account of meaning-making that complements rhetorical analysis: rhetoric asks how a text persuades; discourse analysis asks what world the text constitutes.