This is the 4484th most frequent Turkish word.
at
Horse.
Here, the word 'at' is used as a noun meaning 'horse'.
At bahçede koşuyor.
The horse is running in the garden.
Here, 'atı' is the accusative form of 'at,' showing that the 'horse' is the direct object.
Atı serbest bırakmaya karar verdiler.
They decided to release the horse.
In this sentence, 'at' is used as a command form of the verb 'atmak,' meaning 'to throw'.