1. Insert punctuation marks into
   "The editor punctuated the manuscript to improve its readability";
   - mark
    
2. Single out as important; draw attention to (something)
   "The speaker punctuated his key points with gestures";
   - stress, emphasize, emphasise [Brit], accent, accentuate
    
3. Interrupt periodically
   "Her sharp questions punctuated the speaker's drone"

Derived forms: punctuating, punctuates, punctuated

Type of: add, cut off, disrupt, evince [formal], express, interrupt, show