Englishfor English speakers
unauthorised
—
adjective
(= unauthorized, wildcat)
without official authorization
an unauthorized strike
wildcat work stoppage
—
adjective
(= unauthorized)
not endowed with authority
usage
Noun
—
The way or the amount of using; use.
I learnt the usage of some verbs while studying the language.
—
A habit or accepted practice.
fee
Noun
—
A fee is the money you pay for some kinds of services, such as legal advice, education, or club membership.
School fees have increased again this year.
—
(law) An inheritable estate in land held of a feudal lord in return for certain services.
He held his lands in fee of the Earl of Chester.