This is the 1494th most frequent Japanese word.
いただく
"いただく" is a humble form of "to receive" or "to eat/drink" in Japanese.
In this context, 'いただく' is a polite form of 'to receive'.
この本をいただきました。
I received this book.
Here, 'いただく' is used as a polite way to indicate receiving or having something.
お茶をいただいてもよろしいですか。
May I have some tea?
In this sentence, 'いただく' expresses a polite gratitude for receiving assistance or advice.