theme song


noun

a melody in an operetta or musical comedy so emphasized by repetition as to dominate the presentation.
a melody identifying or identified with a radio or television program, dance band, etc., usually played at the beginning of each program.
an expression, comment, or subject of conversation that a person or group uses habitually.

Origin of theme song

An Americanism dating back to 1925–30

Example sentences from the Web for theme song

British Dictionary definitions for theme song

theme song

noun

a melody used, esp in a film score, to set a mood, introduce a character, etc
another term for signature tune