verb past tense of the verb 'know', expressing surprise or disbelief
interjection used to express surprise or wonder
Who knew! There was a hidden treasure in the backyard.
Who knew! What lies beyond the horizon.
Who knew! The surprise party was a success.
Who knew! This new technology would revolutionize the industry.
Who knew! The magician's tricks were so impressive.
In a professional setting, a writer might use 'Who knew!' to express surprise or astonishment at a piece of information or a new development in their field. For example, a writer researching a topic might come across a little-known fact and exclaim, 'Who knew!' in response.
A psychologist might use 'Who knew!' to acknowledge a surprising discovery or insight in their research or clinical practice. For instance, a psychologist studying human behavior might uncover a pattern that challenges existing beliefs and react with 'Who knew!' to express their astonishment.