Fee
A fee is the price one pays as renumeration for services, especially the honorarium paid to a doctor, lawyer or member of a learned profession. As part of their mystique, traditional professionals in Britain received a fee in contradistinction to a payment, salary, wage or mere money, and would often use guineas rather than pounds as units of account.
One may also charge/pay fees as a fixed sum for the right to enter for an examination, or on admission to membership of a university or other society.
FEE is also an ironic acronym for the Everett Turnpike, a toll road in New Hampshire, United States.
For the technical (and original) usage of the term fee in the European feudal system see fiefdom.