Definitions

1. adjective

having a blue colour or relating to blue

“The blu waters of the lake were perfect for swimming.”

2. noun

a unit of Blu-ray or Blu-ray disc, a type of digital optical disc

“The new movie was released on Blu.”

3. noun

a slang term for blue jeans

“He was wearing his favourite pair of blus to the party.”

4. proper noun

a brand name for mobile telephones, Blu (brand)

“I just got my new Blu smartphone.”