# ธาตุ
## Noun (N)
### Sense: (linguistics) the form of a word after all affixes are removed
- root
- root word
- base
- stem
- theme
- radical
### Sense: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
- chemical element
- element
### Sense: one of four substances thought in ancient and medieval cosmology to constitute the physical universe