This is the 8504th most frequent Japanese word.
払う
"払う" means "to pay" or "to clear away."
Here, '払う' is used to indicate monetary payment.
店で料金を払いました。
I paid the bill at the store.
'払う' is used metaphorically here, meaning to 'pay' or 'give' attention.
彼は注意を払って仕事をしています。
He works with attention to detail.
'払う' is used in the context of removing dust or dirt.