A suffix is a group of letters added to the end of a word to change its meaning or grammatical function. Many suffixes can turn a noun into an adjective.
Here are some common examples:
* -ful: Beautiful (from beauty), hopeful (from hope)
* -less: Hopeless (from hope), fearless (from fear)
* -ish: Childish (from child), bookish (from book)
* -al: National (from nation), musical (from music)
* -ic: Fantastic (from fantasy), heroic (from hero)
* -y: Rainy (from rain), sunny (from sun)
Example:
* Noun: "The dog is playful."
* Adjective: "The dog is playful." (The suffix "-ful" turns "play" into "playful" which describes the dog.)
Let me know if you'd like to explore other suffixes or examples!