aide-mémoire

noun
UK /ˌeɪd mɛmˈwɑː/
US /ˌeɪd mɛmˈwɑr/

A small note you keep to help you remember something.

She wrote an aide-mémoire on a card so she would not forget the meeting time.


OTHER MEANINGS

2. A short written summary of important points for a meeting or discussion.

The diplomat carried an aide-mémoire into the negotiation.

3. A book or list that helps you recall facts, such as a study guide.

His aide-mémoire of French verbs helped him pass the test.

4. Something used to jog the memory, like a string tied around a finger.

The knot in her handkerchief was a simple aide-mémoire.