cancellationmark
nounUK /ˌkænsəˈleɪʃən mɑːk/
US /ˌkænsəˈleɪʃən mɑːrk/
A cancellation mark is a stamp put on a letter to show it has been used.
The old envelope had a round cancellation mark on the corner.
RELATED WORDS
OTHER MEANINGS
2. A printed line or symbol drawn through something to show it is no longer valid.
There was a cancellation mark across the ticket so nobody could use it again.
3. A small sign on a map or plan showing that a planned item has been removed.
The builder added a cancellation mark where the extra door used to be.
4. A collector's term for the ink mark that shows when and where a stamp was used.
She studied the cancellation mark to learn which city the letter came from.