from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A piece of work that has been given much critical praise, especially one that is considered the greatest work of a person's career.
- n. A work of outstanding creativity, skill or workmanship.
- n. A work created in order to qualify as a master craftsman and member of a guild.
chef + d'oeuvre, a calque of French chef d'œuvre (Wiktionary)