warningnote
nounUK /ˈwɔːnɪŋ nəʊt/
US /ˈwɔːrnɪŋ noʊt/
A warning note is a short message that tells you to be careful.
The teacher left a warning note on the door about the wet floor.
OTHER MEANINGS
2. A brief written notice that something bad may happen.
He found a warning note taped to the broken machine.
3. A short official message telling people about a danger.
The park posted a warning note about the strong waves.
4. A small written reminder to be careful about something.
Mom put a warning note on the stove so nobody would touch it.