Which dictionary design innovation, first introduced in 1963, revolutionized how users find words and significantly enhanced the user experience of language reference materials?

In the world of language learning and linguistics, product design plays a crucial role in how we access and interact with language resources. One of the most significant shifts in dictionary design changed how we interact with language tools forever. Test your knowledge of this pivotal product design evolution that transformed both physical and digital dictionaries!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Thumb indexes (notches on page edges)
Color-coded semantic categories
Pronunciation audio buttons
Integrated etymology diagrams