double bar

noun, Music.
1.
a double vertical line on a staff indicating the conclusion of a piece of music or a subdivision of it.
Origin
1665-75
Examples from the web for double bar
  • Where the repeat sign is followed by a double bar, no space is left between them.
British Dictionary definitions for double bar

double bar

noun
1.
(music) a symbol, consisting of two ordinary bar lines or a single heavy one, that marks the end of a composition or a section within it