SHU

noun5

1. •
   Acronym of security housing unit.

   • He picked a fight on the yard and got himself put into the SHU the day before my release. — 2018
2. •
   Acronym of segregated housing unit.
3. •
   Acronym of special housing unit.
4. •
   (Canada) Acronym of special handling unit.
5. •
   Initialism of Scoville heat unit.

noun2

1. •
   (historical) A former kingdom the primary state of the Shu civilization, Shu culture, in what is now Sichuan, China
2. •
   Synonym of Chu, a river in Kazakhstan and Kyrgyzstan.