This is the 5079th most frequent Turkish word.
hapiste
"In prison."
The word 'hapiste' is used here as a location descriptor to indicate that the man is physically inside a prison or jail.
Adam şu anda hapiste bulunuyor.
The man is currently in prison.
Here, 'hapiste' is used temporally to specify the condition or state of being in prison during which something happened.
Hapisteyken birçok kitap okumuştu.
He had read many books while being in prison.
In this sentence, 'hapiste' serves as a condition or causal factor related to the subject's circumstance, affecting externally perceived outcomes.