ascertain
verb (used with object)
to find out definitely; learn with certainty or assurance; determine.
ascertaining
-
present participleof ascertain.present participle
A verb form that is used in progressive verb constructions and may also function as a modifier or a gerund.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The export control amounts to a de facto ban on the model since Anthropic has no way of ascertaining the nationality of its users.
From The Wall Street Journal ● Jun. 16, 2026
And if you’re brave enough to step deeper into the lot, yet clearly not confident in ascertaining a Golden Pothos from a Pothos N’Joy, a woman with a warm smile will approach you kindly.
From Los Angeles Times ● Mar. 13, 2025
On Monday evening, Assam Director General of Police GP Singh had said that authorities were ascertaining the exact number of people trapped.
From BBC ● Jan. 7, 2025
“Sourcing gold from the UAE is notoriously risky,” the report said, describing the difficulty in ascertaining the origins of the refined gold.
From Seattle Times ● May 30, 2024
It is desired that the investigation of subject be most searching and pointed towards ascertaining the nature of her present activity and the identity of her associate.
From "Endgame" by Frank Brady
