secretsign
nounUK /ˈsiː.krət.saɪn/
US /ˈsiː.krət.saɪn/
A secretsign is a special signal that only certain people know about.
The two friends made a secretsign with their hands so no one else would understand.
OTHER MEANINGS
2. A mark or symbol used to show membership in a secret group.
The detective found a secretsign carved into the old wooden door.
3. A subtle hint that only an insider would notice.
She gave him a secretsign that meant it was time to leave the party.
4. A gesture used to communicate without speaking.
During the test, the students used a secretsign to share answers.