keychart
nounUK /ˈkiː.tʃɑːt/
US /ˈki.tʃɑrt/
A keychart is a picture with symbols that helps you understand a map or a book.
The keychart at the bottom of the map showed what each colored line meant.
SYNONYMS
OTHER MEANINGS
2. A chart that lists the main musical keys and their related chords.
The guitarist used a keychart to find the chords that go with the song.
3. A summary table showing the most important points of a topic.
The teacher handed out a keychart of the chapter before the test.
4. A diagram that explains the symbols used in a technical drawing.
Engineers checked the keychart to read the wiring plan correctly.