Honorarium and Lucre

Honorarium noun - A fee paid for a nominally free service.

Lucre and honorarium are semantically related. In some cases you can use "Lucre" instead a noun "Honorarium".

Lucre noun - Something (as pieces of stamped metal or printed paper) customarily and legally used as a medium of exchange, a measure of value, or a means of payment.

Honorarium and lucre are semantically related. Sometimes you can use "Honorarium" instead a noun "Lucre".