This is the 2138th most frequent Turkish word.
ekim
"October" or "planting/sowing."
The word "Ekim" in this sentence refers to the calendar month of October, a proper noun.
Ekim ayında hava serinlemeye başlar.
In October, the weather starts to cool down.
Here, "ekim" refers to the act of sowing or planting seeds.
Tarlada ekim işleri bitti.
The sowing tasks in the field are finished.
In this sentence, "Ekim" is part of the historical term "Büyük Ekim Devrimi," referring to the October Revolution.