What paid keywords?

Paid keywords are keywords you bid for inside Google Adwords. You pay Google a fee for each click in order to appear in their sponsored action for keywords related to your business. Inside the Paid Search report, Ahrefs shows the keywords the target site has bidded for.

For More Information Please Refer: https://help.ahrefs.com/en/articles/2084360-what-is-the-relationship-between-paid-keywords-and-paid-traffic-value