| PRU | a former kingdom in north-central Europe including present-day northern Germany and northern Poland |
|---|---|
| PRU | a German inhabitant of Prussia |
| PRU | of or relating to or characteristic of Prussia or its inhabitants |
| PRU | Old World star of Bethlehem having edible young shoots |
| PRU | a dark greenish-blue color |
| PRU | any of various blue pigments |
| PRU | a weak poisonous acid (HCN) used in fumigating and in synthesis of organic compounds |