The Collaborative International Dictionary of English v.0.48:

Strophe \Stro"phe\, n.; pl. Strophes. [NL., from Gr. ?, fr. ?
   to twist, to turn; perh. akin to E. strap.]
   In Greek choruses and dances, the movement of the chorus
   while turning from the right to the left of the orchestra;
   hence, the strain, or part of the choral ode, sung during
   this movement. Also sometimes used of a stanza of modern
   verse. See the Note under Antistrophe.
   [1913 Webster]

WordNet (r) 3.0 (2006):

strophe
    n 1: one section of a lyric poem or choral ode in classical
         Greek drama

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "strophe":
   Spenserian stanza, antistrophe, book, burden, canto, chorus,
   couplet, distich, envoi, epode, heptastich, hexastich, line,
   measure, monostich, octastich, octave, octet, ottava rima,
   pentastich, quatrain, refrain, rhyme royal, septet, sestet, sextet,
   stanza, stave, strain, syllable, tercet, terza rima, tetrastich,
   triplet, tristich, verse