What is the teacher discussing?

(Read the text and answer the following question)

Rupa could understand the system.

The teacher asks to notice the words in bold written one after another.

The words are arranged systematically or chronologically in a page. That means, they are written one after another in the dictionary like in the alphabet of a language.

The teacher is talking about how to find a word in a dictionary. She is giving instructions and showing the systematic order of the words. So, I think, she is showing the proper way of finding a word from a dictionary.