SAPPHIC is a 7 letter word that starts with S.

1. \Sap"phic\, a. [L. Sapphicus, Gr. ?, fr. ? Sappho.]
   1. Of or pertaining to Sappho, the Grecian poetess; as,
      Sapphic odes; Sapphic verse.
   
   2. (Pros.) Belonging to, or in the manner of, Sappho; -- said
      of a certain kind of verse reputed to have been invented
      by Sappho, consisting of five feet, of which the first,
      fourth, and fifth are trochees, the second is a spondee,
      and the third a dactyl.
   
   

2. \Sap"phic\, n. (Pros.)
   A Sapphic verse.