An adjective is a word that describes a noun.
Usually an adjective comes immediately before the noun it describes.
Example 1: A small troll stood by the bridge.
The word small is an adjective. It describes the noun, troll.
Sometimes an adjective comes after the noun.
Example 2: The elf in the workshop was funny.
The adjective funny describes the noun, elf.
An adjectives can tell what kind or how many