The superlative form of "empty" is "emptiest." It is used to describe something that has the least amount of contents or is the most devoid of substance compared to others. For example, you might say, "This box is the emptiest of all."
emptier, emptiest
The emptiest.
emptier, emptiest
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
superlative of quiet
The emptiest.
emptier, emptiest
emptier, emptiest
The word emptiest does not have a word that rhymes with it. The word emptiest is the superlative adjective of the word empty.
There is no suffix in the word emptiest. It is the superlative degree of the adjective empty. Do not mistake endings for suffixes.
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
The superlative for willing would be "most willing." There is no one-word superlative.
"Studying" is not a superlative, as it is not an adjective. "Most studious" is a superlative of "studious."
"Bib" is a noun and, as such, does not have a superlative form.
Tallest is the superlative.
superlative of quiet
most superlative is the superlative form of superlative