sign
nounUK /saɪn/
US /saɪn/
A sign is a board or picture that tells you something.
The sign on the door says the shop is closed.
OTHER MEANINGS
2. A mark or shape that has a special meaning.
A red light is a sign that cars must stop.
3. A movement or gesture that tells someone something.
She gave a sign with her hand to come closer.
4. To write your name on something.
Please sign your name at the bottom of the page.