1. long $→$ longitude
2. strong $→$ strength
3. deep $→$ depth
4. high $→$ height
5. small/big $→$ smallness/bigness
6. neigh $→$ neigh (từ này đã là danh từ sẵn rồi ạ)
7. healthy $→$ health
8. noisy $→$ noisiness
9. busy $→$ business
10. tired $→$ tiredness
$@YuuSaji$