Definition of ascertain in English:

ascertain

Line breaks: as¦cer|tain
Pronunciation: /ˌasəˈteɪn
 
/

verb

[with object]
Find (something) out for certain; make sure of: an attempt to ascertain the cause of the accident [with clause]: management should ascertain whether adequate funding can be provided
More example sentences
  • A second objective was to attempt to ascertain the limits to survival in terms of loss of conductivity.
  • It would be appreciated if you would ascertain this information in a timely manner.
  • Much effort has been expended in attempting to ascertain a precise antecedent to the trust in other laws.
Synonyms
find out, discover, get/come to know, work out, make out, fathom (out), become aware of, learn, ferret out, dig out/up, establish, fix, determine, settle, decide, verify, make certain of, confirm, deduce, divine, intuit, diagnose, discern, perceive, see, realize, appreciate, identify, pin down, recognize, register, understand, grasp, take in, comprehend
informal figure out, get a fix on, latch on to, cotton on to, catch on to, tumble to, get
British informal twig, suss (out)
North American informal savvy
rare cognize

Origin

late Middle English (in the sense 'assure, convince'): from Old French acertener, based on Latin certus 'settled, sure'.

Derivatives

ascertainable

adjective
More example sentences
  • The common law is not always clear, but in most fields it is reasonably ascertainable.
  • He added that he would have given the cause of death as not ascertainable.
  • Even then it would not derive from any objectively ascertainable standard or consensus within a recognised profession.

ascertainably

adverb

ascertainment

noun
More example sentences
  • We do not know how these subjects were selected or anything about the ascertainment of diagnosis or any other aspect of the design of the study.
  • Regardless of the opinions, however, the application of ascertainment and discernment require readers to discuss the book critically.
  • It allows the activation and communication of feelings which the mere ascertainment and manipulation of those circumstances and conditions would not evoke.

Definition of ascertain in:

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