1. Adding Suffixes:
* -al: national (from nation)
* -ful: beautiful (from beauty)
* -ous: courageous (from courage)
* -ic: historic (from history)
* -y: cloudy (from cloud)
* -ish: boyish (from boy)
* -like: childlike (from child)
* -en: golden (from gold)
* -an: American (from America)
2. Using Compound Words:
* Noun + Noun: sunbeam (from sun and beam)
* Noun + Adjective: snow-white (from snow and white)
3. Using Prepositions:
* Noun + of: city of Rome (from city and Rome)
* Noun + with: house with a garden (from house and garden)
4. Using Prefixes:
* un-: unhappy (from happy)
* in-: inaccurate (from accurate)
5. Other Methods:
* Changing the Ending: The noun "hero" can become the adjective "heroic."
* Using a related noun: The noun "anger" can become the adjective "angry."
Examples:
* Noun: tree Adjective: tree-like, wooden
* Noun: ocean Adjective: oceanic
* Noun: star Adjective: starry
* Noun: rain Adjective: rainy
* Noun: book Adjective: bookish
Note: Some nouns already function as adjectives without any changes. For example: "gold" can be used as a noun or an adjective (a gold ring).