What is another word for card index?
Pronunciation: [kˈɑːd ˈɪndɛks] (IPA) 
When it comes to organizing data or information, one popular method is to use a card index. However, there are many synonyms that can be used to refer to this system, depending on the context and format of the cards. Some common alternatives to card index include card catalog, card system, file card index, rolodex, and address book. In some cases, the term "card file" may also be used interchangeably with card index or related terms. Regardless of the specific terminology used, the important thing is to have a system in place that allows for easy access and retrieval of important information, whether it's for personal or professional use.
