do-not-enter sign
nounUK /ˌduː nɒt ˈentə saɪn/
US /ˌduː nɑːt ˈentər saɪn/
A sign that tells people they must not go in.
A do-not-enter sign hung on the closed door.
RELATED WORDS
OTHER MEANINGS
2. A red circular traffic sign with a white horizontal bar that means vehicles may not proceed.
The driver stopped at the do-not-enter sign and turned around.
3. A notice placed at an entrance to keep unauthorized people out of a restricted area.
Workers put up a do-not-enter sign while the floor was being repaired.
4. A digital or printed marker on a webpage or form that blocks access to a section.
The page showed a do-not-enter sign until the user logged in.