This is the 7503rd most frequent Turkish word.
gürer
The Turkish word "gürer" means "thrives vigorously" or "flourishes."
Here 'gürer' describes the quality of Ahmet's voice being strong or resonating.
Ahmet'in sesi gerçekten gürer.
Ahmet's voice indeed resounds.
In this sentence, 'gürer' conveys the sound or noise produced by the trees.
Fırtına sırasında ağaçlar rüzgarın etkisiyle gürer.
During the storm, the trees roar under the influence of the wind.
Here, 'gürerdi' is used to describe the loud and resonating sound made by the drum during the concert.