How do the word most used in sentence That is beautiful dress you have ever seen?

The word "most" is used as the superlative adjective in the sentence "That is the most beautiful dress you have ever seen."

Here's how it works:

* Beautiful is an adjective describing the dress.

* Most is used to compare the dress's beauty to all other dresses the person has seen, making it the most beautiful.

* The sentence is saying that the dress is more beautiful than any other dress the person has seen.