Search Result for "theme song":
Wordnet 3.0

NOUN (2)

1. a melody used to identify a performer or a dance band or radio/tv program;
[syn: signature, signature tune, theme song]

2. a melody that recurs and comes to represent a musical play or movie; 



WordNet (r) 3.0 (2006):

theme song
    n 1: a melody used to identify a performer or a dance band or
         radio/tv program [syn: signature, signature tune,
         theme song]
    2: a melody that recurs and comes to represent a musical play or
       movie