知識の定義と意味 - メリアム・ウェブスター

KNOWLEDGE Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Synonym Chooser Example Sentences Word History Phrases Containing Rhymes Entries Near Related Articles Cite this Entry Citation Kids Definition Kids Legal Definition Legal More from M-W Show more Show more Citation Kids Legal More from M-W Save Word To save this word, you'll need to log in. Log In knowledge noun knowl·​edge ˈnä-lij Synonyms of knowledge 1 a (1) : information, understanding, or skill that you get from experience or education a thirst/quest for knowledge They have little/no/some knowledge of fashion/history/cooking. (2) : acquaintance with or understanding of a science, art, or technique knowledge of advanced mathematics has little knowledge of the techniques of drawing and painting a knowledge of foreign languages b (1) : the fact or condition of being aware of something The decision was made without my knowledge . [=I did not know about the decision] (2) : the range of one's information or understanding answered to the best of my knowledge c philosophy : the circumstance or condition of apprehending truth, fact, or reality immediately with the mind or senses : cognition the nature of knowledge d : the fact or condition of having information or of being well educated a person of unusual knowledge It's common knowledge [=most people know] that she plans to run for mayor. His legal problems are a matter of public knowledge . [=have been in the news and are widely known] 2 a : the sum of what is known : the body of truth, information, and principles acquired by humankind adding to the vast store of knowledge b archaic : a branch of learning 3 archaic : sexual intercourse 4 obsolete : cognizance Synonyms of knowledge Relevance wisdom expertise intelligence lore See All Synonyms & Antonyms in Thesaurus Choose the Right Synonym for knowledge knowledge , learning , erudition , scholarship mean what is or can be known by an individual or by humankind. knowledge applies to facts or ideas acquired by study, investigation, observation, or experience. rich in the knowledge of human nature learning applies to knowledge acquired especially through formal, often advanced, schooling. a book that demonstrates vast learning erudition strongly implies the acquiring of profound, recondite, or bookish learning. an erudition unusual even in a scholar scholarship implies the possession of learning characteristic of the advanced scholar in a specialized field of study or investigation. a work of first-rate literary scholarship Examples of knowledge in a Sentence At that time the word science had not been narrowed down to one kind of knowledge ; it meant whatever was known, and men of learning were still able to possess most of it. — Jacques Barzun , From Dawn to Decadence , 2000 With their aid, he should be able to adapt himself selectively to his culture, rejecting its evils, stupidities and irrelevances, gratefully accepting all its treasures of accumulated knowledge … and practical wisdom. — Aldous Huxley , "Culture and the … ," in Artificial Paradises , Mike Jay editor , 1999 The knowledge of the godawful way people act (their greed, their vicarious or direct violence), and of the youth and helplessness of those who died, leads to shame … — Harold Brodkey , New Yorker , 30 Jan. 1995 She has little knowledge of fashion. He has devoted himself to the pursuit of knowledge . She gained a thorough knowledge of local customs. Did you have any knowledge of her intentions? See More Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Every personal finance review is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of personal finance products. — Liz Knueven, CNBC , 2 May 2026 Brain scans were not widely available, and there was scant knowledge of sleep stages such as REM sleep, when more vivid dreams take place. — Shayla Love, New Yorker , 1 May 2026 Another source with knowledge of the investigation said other officers’ actions also are the subject of a wide-ranging inquiry into what precipitated Saturday’s shooting. — Chicago Tribune , 1 May 2026 Quick hits • Orlando Science Center hosts Mess Fest, which splatters knowledge and physics with paint, foam explosions and more. — Dewayne Bevil, The Orlando Sentinel , 1 May 2026 See All Example Sentences for knowledge Word History Etymology Middle English knowlege , from knowlechen to acknowledge, irregular from knowen First Known Use 14th century, in the meaning defined at sense 4 Time Traveler The first known use of knowledge was in the 14th century See more words from the same century Phrases Containing knowledge be secure in the belief / knowledge knowledge engineering safe / secure in the knowledge self - knowledge the best of my knowledge to one's knowledge without someone's knowledge Rhymes for knowledge college haulage acknowledge precollege foreknowledge See All Rhymes for knowledge Browse Nearby Words knowledgable knowledge knowledgeability See all Nearby Words Articles Related to knowledge Wisdom vs. Knowledge: What They Mean... They're not always the same Cite this Entry Style MLA Chicago APA Merriam-Webster “Knowledge.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/knowledge. Accessed 4 May. 2026. Copy Citation Kids Definition knowledge noun knowl·​edge ˈnäl-ij 1 : understanding or skill gained by experience a knowledge of carpentry 2 a : the state of being aware of something or of having information b : the range of one's information or understanding answered to the best of my knowledge 3 : something learned and kept in the mind : learning has a vast knowledge of history Legal Definition knowledge noun knowl·​edge 1 a : awareness or understanding especially of an act, a fact, or the truth : actual knowledge in this entry b : awareness that a fact or circumstance probably exists broadly : constructive knowledge in this entry see also scienter , willful blindness Note: Knowledge fundamentally differs from intent in being grounded in awareness rather than purpose. — actual knowledge : direct and clear awareness (as of a fact or condition) the bank had actual knowledge that the name and account number referred to different persons : awareness of such information as would cause a reasonable person to inquire further specifically : such awareness considered as a timely and sufficient substitute for actual notice (as of a work-related injury or of a bankruptcy proceeding) ruled that the employer did not have actual notice or actual knowledge within 90 days — constructive knowledge : knowledge (as of a condition or fact) that one using ordinary care or diligence would possess had constructive knowledge of the presence of narcotics on his property — personal knowledge : direct knowledge of a matter or of the truth or falsity of an allegation a witness may not testify to a matter unless evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter — Federal Rules of Evidence Rule 602 — superior knowledge : knowledge greater than that possessed by another especially : awareness of a condition or fact that affects another who was not aware of it denied having had superior knowledge of the hazard superior knowledge of a factor in the performance of a contract 2 : the range of one's information, understanding, or expertise answered to the best of his knowledge More from Merriam-Webster on knowledge Nglish: Translation of knowledge for Spanish Speakers Britannica.com: Encyclopedia article about knowledge Last Updated: 2 May 2026 - Updated example sentences Love words? 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