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
In the autumn of 1971 a man used to come to our house, bearing confections in his pocket and hopes of ascertaining the life or death of his family.
From "Interpreter of Maladies" by Jhumpa Lahiri
