Catchword and Key

Catchword noun - A word printed at the top of the page of a dictionary or other reference book to indicate the first or last item on that page.

Key and catchword are semantically related. In some cases you can use "Key" instead a noun "Catchword".

Key noun - An explanatory list of the symbols on a map or chart.

Catchword and key are semantically related. Sometimes you can use "Catchword" instead a noun "Key".

Nearby Words: keyed, keyboard, keying