soi

noun1

1. •
   In Thailand, a side-street branching off a major street; an alley or lane.

   • When a motorbike sped too fast down their little side street, … Daeng and Nat would be revisiting many ranting conversations they'd had about motorbikes treating this tiny soi like it was the highway. — 2019

noun2

1. •
   Initialism of sphere of influence.
2. •
   Initialism of silicon on insulator.