v. t. | 1. | To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise. |
2. | To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine. | |
3. | To find out or learn for a certainty, by trial, examination, or experiment; to get to know; |
Verb | 1. | ascertain - after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize" |
2. | ascertain - be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product" | |
3. | ascertain - find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time" | |
4. | ascertain - learn or discover with certainty |