This is the 17058th most frequent Turkish word.
çektirdi
"Çektirdi" means "caused (someone) to have/take (something, such as a photo)".
The word 'çektirdi' here means caused someone or requested someone to take photographs, referring to Ali's intention in having photos taken during his vacation.
Ali, tatilde çok güzel fotoğraflar çektirdi.
Ali had very nice photos taken on vacation.
In this sentence, 'çektirdi' implies allowing or enabling her friend to cheat, highlighting its contextual meaning of causing an action to be performed by another person.
Bahar sınavda arkadaşına kopya çektirdi.
Bahar let her friend cheat on the exam.
Here 'çektirdiği' (note the tense and grammatical change) points to the subject's responsibility in having the photo taken, emphasizing the connection between the person and the action performed.