This is the 1855th most frequent Chinese word.
交代
"交代" means "to explain, hand over, or account for."
In this context, '交代' means 'to explain or provide a detailed account'.
他会向大家交代这件事情的来龙去脉。
He will explain the specifics of this matter to everyone.
Here, '交代' is used to mean 'to justify or give reasons for'.
你必须交代清楚,为什么这个任务没有完成。
You must clarify why this task was not completed.
Here, '交代' means 'to arrange or settle matters before departure'.