covertorder

noun
UK /ˈkʌvət ˈɔːdə/
US /ˈkoʊvərt ˈɔːrdər/

A secret instruction that tells someone to do something without letting other people know.

The spy received a covertorder to deliver the package at midnight.


OTHER MEANINGS

2. A quiet rule followed inside a group that outsiders are not told about.

The club had a covertorder about who could sit at the front table.

3. An unspoken signal between friends to act in a certain way.

When she tapped her watch, it was a covertorder for everyone to leave.

4. A hidden arrangement made in advance to keep something organized secretly.

They made a covertorder to meet behind the library after school.