Definitions:

1. Meaning excellently or perfectly. ADVERB
   • He fixed the car tiptop, and it runs smoothly now.
2. Means excellent, perfect, or in the best possible condition. ADJECTIVE
   • Her performance was tiptop, impressing everyone in the audience.
3. Refers to the very highest point or best state. NOUN
   • The athlete was in tiptop condition just before the championship game.
4. The highest level or degree attainable. NOUN
   • The orchestra's performance was tiptop, earning them a standing ovation.

Synonyms:

• excellent
• first-class
• Pinnacle
• prime
• super
• superb
• superior
• superlative
• supreme
• topnotch