American Heritage Dictionary
(2)
Century Dictionary
(5)
GNU Webster's 1913
(1)
WordNet
(4)
Elsewhere on the web
From what I can ascertain, the former Mrs. Mosley felt no need to rake her ex-hubby over the coals.— Doghouse Boxing News
"From what we've been able to ascertain, the city is powered by three Zero Point Modules."— Wraithbait
He also wrote to England begging the Council to ascertain from the French ambassador whether these governors had authority to issue commissions of war, so that his frigates might be able to distinguish between the pirate and the lawful privateer.— The Buccaneers in the West Indies in the XVII Century
We shall then be enabled--by the aid of Comte's principle that the domains of investigation take rank in proportion to the complexity of their Phenomena--to ascertain, after a very brief examination, the place which History holds in the Scale, and how much claim it can lay to a Scientific character Comte closes the Hierarchy of the Positive Sciences by adding to the three which we have denominated Exact Sciences, Chemistry, Biology, Sociology, and La Morale_, in the order in which they are named, as indicated by the nature of the Phenomena with which they are concerned.— The Continental Monthly, Vol. 5, No. 2, February, 1864 Devoted To Literature And National Policy
They replied they did not know; but said we will soon ascertain, as we must scalp them as we go back.— Great Indian Chief of the West Or, Life and Adventures of Black Hawk

American Heritage Dictionary (1)
Century Dictionary (1)
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