How do you you say best wishes in Italian?

"Migliori auguri" is a literal Italian equivalent of "Best wishes."

Specifically, the masculine/feminine plural adjective "migliori" means "best." The masculine plural noun "auguri" means "wishes." The pronunciation is "mee-LYOH-ree ow-GOO-ree."*

*The sound "ow" is similar to that in the English exclamation of pain "ow."