| RAR | a rare or unique person |
|---|---|
| RAR | not widely distributed |
| RAR | not widely known |
| RAR | (of meat) cooked a short time |
| RAR | recurring only at long intervals |
| RAR | marked by an uncommon quality |
| RAR | having low density |
| RAR | a rare or unique person |
| RAR | any element of the lanthanide series (atomic numbers 57 through 71) |
| RAR | any element of the lanthanide series (atomic numbers 57 through 71) |
| RAR | cheese melted with ale or beer served over toast |
| RAR | a street show |