This is the 9th most frequent Turkish word.
bin
"Bin" in Turkish means "thousand."
In this sentence, 'binmek' is a verb meaning 'to ride or get on' and is related to 'bin' when combined to form the action of mounting or riding.
Ben bisikletime binmek istiyorum.
I want to ride my bicycle.
Here, 'binlerce' means 'thousands of', where 'bin' is used to denote the numerical value 1000.
Bu otoyolda her gün binlerce araba geçiyor.
Thousands of cars pass on this highway every day.
In this instance, 'bin' is used purely as the numeral for 1000, indicating a specific quantity.