[bluːz], (Noun)

Definitions:
- melancholic music of black American folk origin, typically in a twelve-bar sequence. It developed in the rural southern US towards the end of the 19th century, finding a wider audience in the 1940s, as black people migrated to the cities. This urban blues gave rise to rhythm and blues and rock and roll
(e.g: blues has always had a strong following in Australia)

- feelings of melancholy, sadness, or depression
(e.g: she's got the blues)


Phrases:

Origin:
mid 18th century (in blues): elliptically from blue devils ‘depression or delirium tremens’