1. (especially in opera production) a translation of a segment of the libretto or other text or sometimes a brief summary of the plot projected onto a screen above the stage during a performance.
verb (used with object), su·per·ti·tled, su·per·ti·tling.
  1. to provide supertitles for.
Also surtitle.

Origin of supertitle Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018