This is the 7234th most frequent Spanish word.
garganta
Throat.
Here, 'garganta' refers to the physical part of the body, the throat.
Me duele la garganta cuando hablo mucho.
My throat hurts when I talk a lot.
In this context, 'garganta' is used metaphorically to describe a narrow valley or canyon.
El río fluye por una garganta profunda en las montañas.
The river flows through a deep canyon in the mountains.
This usage illustrates 'garganta' as a poetic reference to the source of the voice.