Noun affixes are affixes that form nouns upon addition to root words. The following are examples of noun affixes:
| Type of noun affixes | Affix | Example of root word | Example of derived word |
|---|---|---|---|
| Prefix | pə(r)- ~ pəng- | duduk (sit) | penduduk (population) |
| kə- | hendak (want) | kehendak (desire) | |
| Infix | ⟨əl⟩ | tunjuk (point) | telunjuk (index finger, command) |
| ⟨əm⟩ | kelut (dishevelled) | kemelut (chaos, crisis) | |
| ⟨ər⟩ | gigi (teeth) | gerigi (toothed blade) | |
| Suffix | -an | bangun (wake up, raise) | bangunan (building) |
| Circumfix | kə-...-an | raja (king) | kerajaan (kingdom) |
| pə(r)-...-an pəng-...-an | kerja (work) | pekerjaan (occupation) |
The prefix per- drops its r before r, l and frequently before p, t, k. In some words it is peng-; though formally distinct, these are treated as variants of the same prefix in Indonesian grammar books.
