Cohesion is a semantic relation that links words across a text or discourse and joins the text together to form a coherent whole. Coherence concerns the overall structural organization of the text. The notions of cohesion and coherence have been applied to the discourse of speakers with both developmental and acquired language disorders to unravel the reasons for compromise in discourse beyond the single-word and sentence levels.

Cohesion is a concept that attempts to encompass the continuity of discourse required in everyday coherent interactions, while taking lexical, grammatical, and contextual constraints into account. It is concerned with the presentation of the experiential (representation of actors, actions, goals) and logical (e.g., causal, temporal, additive) meanings within a text in a way that is appropriate to a specific ...