I have ascertained what I suspected—what I wished.
She got no answer; Catherine was not in her room, and Mrs. Penniman presently ascertained that she was not in the house.
It was idle to attempt to ascertain the state of her affections without direct inquiry, because, if she had not had an expressive manner among the familiar influences of home, she failed to gather animation from the mountains of Switzerland or the monuments of Italy.
There are no more uses of "ascertain" in the book.
Show samples from other sources
A committee was formed to ascertain the level of public support for a new bike path.
The slaveholders have been known to send in spies among their slaves, to ascertain their views and feelings in regard to their condition.
Douglass, Frederick -- Narrative of the Life of Frederick Douglass An American Slave