Definition & Meaning of "sunnies"in English

What does "sunnies" mean in Australian slang?

The structure adds the "-ies" suffix to "sun" (short for "sun" as in sunlight protection), forming a plural only noun for sunglasses. It is used in Australian English (and New Zealand English) to mean sunglasses, worn to protect eyes from harsh sunlight. People typically say "Don't forget your sunnies" or "I lost my sunnies at the beach." The term originated in 20th century Australian and New Zealand slang, and remains common in casual speech across Oceania.