closed

A2 · Elementary

adj. not open for business or not working at the moment.

adj. not available for operation, public access, or commercial transactions.

Español:cerrado

“The bank is closed on Sundays, so you will have to wait until Monday.”

“The museum was closed for renovations, much to the disappointment of the tourists who had travelled across the country to see the exhibit.”

B2 · Upper Intermediate

adj. completed or decided, with no more work or talk needed.

adj. finalised or concluded; no longer subject to discussion or action.

“The police consider the case closed now that they have found the owner.”

“Once the contract was signed, the chairman declared the matter closed and moved on to the next item on the agenda.”

C1 · Advanced Mathematics Technical

adj. describing a group of numbers or a shape that has a clear boundary or limit.

adj. describing a set where an operation always produces a result within that set, or a curve that returns to its starting point.

“A circle is a closed curve because it has no beginning or end.”

“The set of integers is closed under addition, meaning the sum of any two integers is always another integer.”