This is the 1164th most frequent Turkish word.
otobüs
Bus.
In this sentence, the word 'otobüs' (bus) is used to form a compound noun, 'otobüs durağı' (bus stop), indicating a place related to buses.
Otobüs durağı burada çok kalabalık.
The bus stop here is very crowded.
Here, 'otobüs' is used as an object of transportation, referring to the vehicle itself.
Sabahları otobüsle işe gidiyorum.
I go to work by bus in the mornings.
In this sentence, 'otobüs' is the subject, specifying which bus is being referred to.