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Definitions of ascertain

  1. 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" Scrapingweb Dictionary DB
  2. 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" Scrapingweb Dictionary DB
  3. learn or discover with certainty Scrapingweb Dictionary DB
  4. 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" Scrapingweb Dictionary DB
  5. To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise. Webster Dictionary DB
  6. To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine. Webster Dictionary DB
  7. To find out or learn for a certainty, by trial, examination, or experiment; to get to know; as, to ascertain the weight of a commodity, or the purity of a metal. Webster Dictionary DB
  8. To make certain; to find out; to determine definitely by test or examination. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.
  9. To determine: to obtain certain knowledge of. The american dictionary of the english language. By Daniel Lyons. Published 1899.
  10. ASCERTAINABLE. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  11. To acquire certain knowledge of; to learn. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.
  12. To make certain; find out; determine. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  13. To make certain; to determine; to find out accurately; to establish. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  14. To make sure by examination; to establish. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
  15. To fix ; to render certain or definite; to estimate and determine; to clear of doubt or obscurity. Brown v. Lyd- dy, 11 Hun, 456; Bunting v. Speek, 41 Kan. 424, 21 Pac. 2SS, 3 L. It. A. 690; Pughe v. Coleman (Tex. Civ. App.) 44 S. W. 578. thelawdictionary.org
  16. as-s[.e]r-t[=a]n', v.t. to determine: to obtain certain knowledge of: (rare) to insure, certify, make certain.--adj. ASCERTAIN'ABLE.--n. ASCERTAIN'MENT. [O. Fr. acertener. See CERTAIN.] gutenberg.org/ebooks/37683
  17. Find out. Hence ascertainable a., ascertainment n. [old French] Concise Oxford Dictionary

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