Deborah Tannen of
Discourse analysis is sometimes defined as the analysis of language 'beyond the sentence'. This contrasts with types of analysis more typical of modern linguistics, which are chiefly concerned with the study of grammar: the study of smaller bits of language, such as sounds (phonetics and phonology), parts of words (morphology), meaning (semantics), and the order of words in sentences (syntax). Discourse analysts study larger chunks of language as they flow together.
Journal of Discourse Analysis