Answer:
All of the following describe words without specific meanings in songs except : refrain.
Explanation:
Refrain basically means like you stop someone from doing something and I don't see how that is a specific meaning of songs.
The word vocalise means a singing exericse or it can be pitch in music so it would not be the answer.
The word scar-singing would not be the answer because you can see in the word it has the word singing and singing is related to music so that would not be the answer.
The word nonlexical is actually a syllable that people used in a good bit in music so it's not the answer.
