monetary gift; reward money; honorarium
Money given as thanks, reward, or fee for a service. Often used for honorariums or gratuities.
Receive an honorarium for a lecture.
I gave a monetary gift to the doctor who took care of me.
key money; rental rights fee
A non-refundable payment to the landlord when renting an apartment in Japan, distinct from a security deposit.
This property requires one month's rent as key money.
I'm looking for an apartment with no key money.
For this apartment you need to pay one month's rent as key money.
No key money is charged for this property.
I'm looking for an apartment with no key money.
In this area, key money equal to two months' rent is standard.
I gave a monetary gift of thanks to the teacher who had helped me.