Here's what that means:
* Adjective: An adjective describes a noun.
* Adverb: An adverb describes a verb, adjective, or another adverb.
* Superlative: The superlative degree indicates the highest or most extreme level of something.
Examples:
* Tall: adjective (describes height)
* Taller: comparative (indicates more height than something else)
* Tallest: superlative (indicates the most height)
* Fast: adverb (describes speed)
* Faster: comparative (indicates more speed than something else)
* Fastest: superlative (indicates the most speed)
Common uses of "-est":
* Comparisons: Used to compare three or more things, indicating the one that possesses the quality in the highest degree.
* Emphasis: Used to emphasize the extreme level of a quality.
Remember:
* Some adjectives and adverbs have irregular superlative forms (e.g., good - better - best, bad - worse - worst).
* The superlative form of an adjective is often used with the definite article "the" (e.g., "the tallest building," "the fastest runner").