Definitions

1. 1. peak
2. 2. apex
3. 3. world best
4. 4. number one
5. 5. finest (competitors)
6. 6. top (figures in a certain field)
7. 7. erhua variant of 頂尖|顶尖

Components

• 顶尖 dǐng jiān – peak
• 儿 r – non-syllabic diminutive suffix