limitofone
nounUK /ˈlɪmɪt əv wʌn/
US /ˈlɪmɪt əv wʌn/
A limit of one means you can only have one of something.
The sign said limit of one free cookie per child.
RELATED WORDS
OTHER MEANINGS
2. A rule that lets each person buy or take just a single item.
There is a limit of one ticket per family for the show.
3. The most you are allowed to have is one thing.
The limit of one bag made everyone choose carefully.
4. A cap set at the number one.
The limit of one entry per contestant kept the game fair.