This is the 316th most frequent Korean word.
목소리를
"Voice" (as an object form).
In this sentence, '목소리를' refers to the quality or intensity of one's voice that is raised when singing.
그녀는 목소리를 높여 노래를 부릅니다.
She raises her voice when singing.
In this context, '목소리를' describes the characteristic or tone of the child's voice.
그 아이는 귀여운 목소리를 가지고 있습니다.
That child has a cute voice.
Here, '목소리를' emphasizes the use of one’s voice as a medium for communication.