| BLU | any of numerous small chiefly blue butterflies of the family Lycaenidae |
|---|---|
| BLU | the sodium salt of amobarbital that is used as a barbiturate |
| BLU | blue clothing |
| BLU | the color of the clear sky in the daytime |
| BLU | any organization or party whose uniforms or badges are blue |
| BLU | the sky as viewed during daylight |
| BLU | used to whiten laundry or hair or give it a bluish tinge |
| BLU | turn blue |
| BLU | causing dejection |
| BLU | having a color similar to that of a clear unclouded sky |
| BLU | characterized by or marked with a bluish color |
| BLU | tinged with blue or purple from cold or contusion |