To experience or go through something, especially a change, process, or difficult event.
“The downtown library will undergo major renovations starting next month.”
“New employees must undergo a two-week training program before starting their duties.”
In Part 3 articles about renovations, policy changes, or personal development, 'undergo' often marks the exact paragraph describing a process of change, as in 'the building will undergo renovations.' Since Part 3 questions frequently ask which paragraph covers a specific change, this verb is a useful signpost.
Synonyms: experience, go through, be subjected to