1. Excellent or splendid
   "that's a perfectly spiffing idea"

See also: superior

• coffee urn
• coffee-table book
• coffeeberry
• coffeecake
• coffeehouse
• coffeepot
• coffer
• cofferdam
• Coffey still
• coffin
• coffin nail
• coffle
• cofounder
• cog
• cog railway
• cogency
• cogeneration
• cogent
• cogent evidence
• cogently
• cogged
• byrnie
• byroad
• Byron
• Byronic