Definition from Wiktionary, the free dictionary
Alt (plural Alts)
- A modifier key.
- (music) Alto; musical part or section higher than tenor and lower than soprano. Originally called contratenor altus, high countertenor, the part that performed a countermelody above the tenor or main melody.
- (music) Alto; person or instrument that performs the alto part
Alt n (genitive Alts, plural Alt)
- a type of beer, typical to the Rhineland region.