This is the 4749th most frequent Turkish word.
deyince
"Upon mentioning" or "when saying."
Here, 'deyince' is used to express association; it indicates what comes to someone's mind when mentioning a specific topic.
Babam deyince aklıma hemen tatil geliyor.
When I think of my father, vacation comes immediately to mind.
In this sentence, 'deyince' highlights the point of reference for a related idea triggered by the initial topic.
Yemek deyince aklına hangi tat gelir?
What flavor comes to your mind when food is mentioned?
Here, 'deyince' is used to convey a reaction or feeling elicited by the mention of a specific subject.