We found 3 dictionaries that define the word singing voices:

General (3 matching dictionaries)

1. singing voices: Collins English Dictionary
2. singing voices: Vocabulary.com
3. singing voices: Wiktionary

(Note: See singing_voice as well.)

Definitions from Wiktionary (singing voice) ▸ noun:  A person's voice when singing. ▸ Also see singing_voice ▸ Words similar to singing voices ▸ Usage examples for singing voices ▸ Idioms related to singing voices ▸ Wikipedia articles (New!) ▸ Words that often appear near singing voices ▸ Rhymes of singing voices ▸ Invented words related to singing voices