This is the 5228th most frequent Turkish word.
işine
"İşine" means "to/for your work/task/job" in English.
Here, 'işine' refers to 'your work/job,' indicating that the topic is beneficial for one's professional or personal tasks.
Bu konu senin işine yarar.
This topic is useful for your work.
In this sentence, 'işine' emphasizes one's work or responsibilities, suggesting the importance of attentiveness.
Her zaman işine dikkat etmelisin.
You should always pay attention to your work.
'İşine' here conveys 'that man's business,' cautioning against meddling in someone's affairs.