Two examples show the sound-plural rules.
- A masculine mamdud noun may take the sound masculine plural: رَفَّاءٌ → رَفَّاؤُونَ.
- A feminine mamdud noun may take the sound feminine plural: سَمَاءٌ → سَمَاوَاتٌ. Here the final hamzah changes to waw before اتٌ.
For feminine adjectives describing colours or physical defects, this lesson separately shows a broken plural pattern rather than treating the sound feminine plural as the only result.