Sorry to have kept you waiting; thank you for waiting

Please have a seat. / Please sit down.

Please wait

to use one's head

use one thing for many purposes / work someone hard

(honorific) to give / (honorific) to do something for me/us

下さる: to give

(Internet slang) dirty room

at-home clothes

an adult son residing with his parents; generally has not yet or can not come into family inheritance / a female servant working in a daimyō, ōoku, or other high-ranking house