Edelweiss — it’s a German word that is typically not translated because it refers to a specific alpine flower (Leontopodium alpinum), well known for its white, star-shaped appearance.
However, if you’re looking for a literal translation or explanation:
Edel = noble
Weiss = white
So it can be loosely described as “noble white” or “noble white flower”, but in almost all contexts, especially historical, military, or cultural (like the WWII-era Edelweiss insignia), the word is kept in its original German form.