Money given as thanks; an honorarium or token of appreciation.
演奏会の後、出演者に礼金を渡した。
After the concert, we gave the performers an honorarium.
町内会でお世話になった人に礼金を包んだ。
We gave a monetary thanks to someone who helped in the neighborhood association.
講師には謝礼や礼金を支払うことが多い。
It's common to pay lecturers an honorarium.
Key money paid when renting (a one-time, often nonrefundable fee given to the landlord).
この物件は礼金なしで募集している。
This property is advertised with no key money.
東京では礼金がかかることが多い。
In Tokyo it's often necessary to pay key money.
契約時に礼金と敷金を合わせて支払った。
I paid key money and the security deposit together at contract signing.