Definition of "underwent" []

• Past tense of undergo. (verb)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Following a protracted pause during which his expression underwent a most striking change, from utter bafflement to burgeoning doubt to unmitigated skepticism, Captain Russell shook his head and declared, Well, Mr. Poe, this is most intriguing, indeed."
• "It existed from 1701 until 1767, during which period its title underwent many changes."
• "Britain underwent a security alert last summer when military spies lost sight of a Russian nuclear submarine, alarming defence chiefs who issued a strong warning of the dangers of cutting back on surveillance technology."