A refrain is a line, phrase, or group of lines repeated at intervals throughout a poem. It is the structural device that gives many fixed forms their identity — the villanelle is built from two refrains that alternate and converge; the pantoum recycles every line as a refrain in a subsequent stanza.

Refrain works through two apparently contradictory effects: repetition and transformation. Each time the refrain returns, the words are the same but the context has changed — and changed context changes meaning. In Dylan Thomas’s villanelle “Do Not Go Gentle into That Good Night,” the refrain “Do not go gentle into that good night” is an abstract exhortation in the first stanza and a direct plea to the speaker’s dying father in the last. The words haven’t changed; the stakes have.

Refrain serves several functions:

  • Musical structure. Refrain creates rhythm at the level of the whole poem — a pulse the reader anticipates, like a chorus in a song. This is why refrain is central to oral and performance poetry.
  • Thematic emphasis. Repetition marks what matters. The refrained line becomes the poem’s center of gravity — the idea the poem keeps returning to.
  • Formal constraint. In fixed forms, the refrain is a rule the poet must write toward and around. This constraint generates invention: the poet must create contexts that make the same words mean different things.

Refrain can also appear in free verse and prose poetry, where it functions less as formal requirement and more as rhetorical emphasis — a phrase that accumulates meaning through return, as anaphora does within a passage.

  • villanelle — built from two alternating refrains
  • pantoum — every line becomes a refrain
  • stanza — the unit the refrain typically punctuates
  • anaphora — repetition at the beginning of clauses, a related device