Sial
The Simple English Wiktionary has a definition for:
sial.
Sial can be the upper layer of the Earth's crust
Sial can also be:
Places
- Sial, Kapurthala, Punjab State, India
- Sial, Khyber Pakhtunkhwa, Pakistan
- Sial Sharif, a small village in Pakistan
Other uses
- Sial (tribe), a people of Pakistan
- siyal/sial/siala, a people in India