This is the 1828th most frequent Turkish word.
değilse
"Değilse" means "if not" or "unless" in English.
As a conjunction meaning 'if not', expressing a conditional situation
Eğer bu doğru değilse, o zaman bizi kandırmışlar.
If this is not true, then they have deceived us.
As a conditional phrase meaning 'if not', presenting an alternative case
Bu senin ceketinse bu boyut doğru, değilse, daha büyük bir beden almamız gerek.
If this is your jacket, this size is correct; if not, we need to get a larger size.
As a comparative clause connector, contrasting dependent clauses