Definitions

1. 1. the brush stroke that dots in the eyes (idiom); fig. to add the vital finishing touch
2. 2. the crucial point that brings the subject to life
3. 3. a few words to clinch the point

Components

• 点睛 diǎn jīng – to dot in the eyes
• 之 zhī – (possessive particle, literary equivalent of 的[de5])
• 笔 bǐ – pen