An end-stopped couplet is a two-line unit where syntactic and grammatical closure coincide with the end of the second line, creating a complete thought or statement within the couplet itself. Strong punctuation marks this closure, preventing the syntax from spilling over into subsequent lines. End-stopped couplets create distinct, self-contained units of meaning that establish a measured, stately pace and clear rhetorical structure. This technique emphasizes the autonomy of individual couplets while allowing them to accumulate into larger arguments or narratives through logical or thematic progression.

An end-stopped couplet concludes both lines with punctuation, creating syntactic and rhythmic closure—common in heroic couplets for epigrammatic effect.