disco

Concise Oxford English Dictionary © 2008 Oxford University Press:
disco/ˈdɪskəʊ/

▶noun (pl. discos)

• 1 a club or party at which people dance to pop music.

• 2 (also disco music) soul-influenced, melodic pop music with a regular bass beat, intended for dancing to.

– origin 1960s abbrev. of discotheque.