1) A-one 2) Best 3) First rate 4) Topnotch 1) Author Levi 2) Best 3) Boxer Carnera 4) Carnera 5) Carnera of boxing 6) Carnera of boxing fame 7) Carnera of ring fame 8) Choice 9) Duet part 10) First among Italians 11) First class 12) First-class 13) First-rate 14) Flawless, to Pietro 15) Heavyweight Carnera 16) Italian boy name 17) Main part in a duet 
Latin, meaning: first, at first, at the beginning, at the start. 
in the first place
• (a.) First; chief.
Pri'mo adjective [ Italian ] (Mus.) First; chief. 
Primo is slang for marijuana mixed with crack or embalming fluid.
[adj] - (informal) the best of its kind 2. [n] - the principal part of a duet (especially a piano duet)
adjective the best of its kind
first, principal
first, at first, at the beginning, at the start.