This is the 773rd most frequent Azerbaijani word.
başına
"Başına" in English means "on the head," "to the head," or "towards the head," depending on context.
In this sentence, 'başına' is used metaphorically to mean taking leadership or responsibility over a task.
O, işin başına keçdi.
He took charge of the work.
Here, 'başına' refers to the literal situation of something being placed or blown onto the head.
Külək şlyapanı başına apardı.
The wind blew the hat onto his head.
In this case, 'başına' appears in an idiomatic expression to signify regret or reflection about an action.