proviso
/prəˈvaɪzoʊ/
noun
- A condition or stipulation in an agreement or document that must be met for the agreement to be valid.
- She agreed to lend him the money with the proviso that he repay it within a year.
- The treaty was signed with a proviso allowing each country to withdraw after six months' notice.
- The contract included a proviso that the buyer must inspect the house within 30 days.
Synonyms