This is the 11254th most frequent Polish word.
głosem
"Voice" (instrument or means of vocal expression, in instrumental case).
In this sentence, "głosem" refers to the manner or quality of the sound of someone's voice, indicating its emotional intensity.
Mówił głosem pełnym emocji.
He spoke with a voice full of emotion.
Here, "głosem" describes the tone or character of the voice used to express her opinion, emphasizing its calm nature.
Wyraziła swoje zdanie spokojnym głosem.
She expressed her opinion with a calm voice.
In this case, "głosem" implies speaking in a manner or style representative of a leader, metaphorically associating the quality of leadership with the mode of speaking.