prohibitory sign
nounUK /prəˈhɪbɪtəri saɪn/
US /proʊˈhɪbɪtɔːri saɪn/
A prohibitory sign is a sign that tells you not to do something.
The prohibitory sign at the pool said 'No Running.'
RELATED WORDS
OTHER MEANINGS
2. A traffic sign that forbids a specific action, such as turning or parking.
Drivers must obey the prohibitory sign and not turn left.
3. A symbol or notice used to forbid entry to a place.
A prohibitory sign kept visitors out of the construction area.
4. A legal marker that bans an activity in a public space.
The prohibitory sign made it clear that smoking was not allowed.