複雑性、名詞。意味、語源など | オックスフォード英語辞典

complexity, n. meanings, etymology and more | Oxford English Dictionary Skip to main content Factsheet Etymology Meaning & use Pronunciation Frequency Compounds & derived words Dictionary Historical Thesaurus Factsheet Quotations Hide all quotations Factsheet What does the noun complexity mean? There are five meanings listed in OED's entry for the noun complexity . See ‘Meaning & use’ for definitions, usage, and quotation evidence. complexity has developed meanings and uses in subjects including grammar (1870s) mathematics (1960s) Entry status OED is undergoing a continuous programme of revision to modernize and improve definitions. This entry has not yet been fully revised. See meaning & use How common is the noun complexity ? About 30 occurrences per million words in modern written English 1750 0.069 1760 0.14 1770 0.21 1780 0.19 1790 0.65 1800 0.54 1810 0.49 1820 0.86 1830 1.5 1840 1.7 1850 2.0 1860 2.5 1870 3.8 1880 4.2 1890 5.8 1900 6.1 1910 7.7 1920 9.6 1930 10 1940 11 1950 15 1960 20 1970 24 1980 28 1990 31 2000 32 2010 32 See frequency What is the etymology of the noun complexity ? complexity is a borrowing from Latin , combined with an English element. Etymons: Latin complexus , ‑ity suffix . See etymology What is the earliest known use of the noun complexity ? Earliest known use mid 1700s The earliest known use of the noun complexity is in the mid 1700s. OED's earliest evidence for complexity is from 1734, in P. L. M. de Maupertuis' Diss. Cœlestial Bodies . See meaning & use How is the noun complexity pronounced? British English /kəmˈplɛksᵻti/ kuhm-PLECK-suh-tee U.S. English /kəmˈplɛksədi/ kuhm-PLECK-suh-dee See pronunciation Nearby entries complexion, v. 1413– complexionably, adv. 1643 complexional, adj. a1398– complexionally, adv. 1646– complexionary, adj. 1656–1704 complexionate, adj. c1430–1750 complexionated, adj. 1650–83 complexioned, adj. 1413– complexioner, n. 1612 complexionless, adj. 1863– complexity, n. 1734– complexive, adj. 1654–72 complexively, adv. 1843 complexly, adv. 1660– complex manifold, n. 1931– complexness, n. 1727– complexum, n. 1664– complexure, n. 1648–75 complexus, n.¹ 1871– complexus, n.² 1828– compliable, adj. 1641– Browse more nearby entries Etymology Thank you for visiting Oxford English Dictionary To continue reading, please sign in below or purchase a subscription. After purchasing, please sign in below to access the content. 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View our subscription options Personal account Access or purchase personal subscriptions Get our newsletter Save searches Set display preferences Sign in Register Institutional access Sign in through your institution Sign in with library card Sign in with username / password Recommend to your librarian Institutional account management Sign in as administrator on Oxford Academic Entry history for complexity, n. complexity, n. was first published in 1891; not fully revised. complexity, n. was last modified in December 2025. Revision of the OED is a long-term project, and oed.com is a living text, updated every three months. Entries which have not been fully revised may include partial interim updates, including: corrections and revisions to definitions, especially to improve clarity, accuracy, or intelligibility; new or updated quotation evidence, and reverified or redated bibliographical information; new or updated pronunciations (transcriptions and audio files); new or revised etymological information and improved coverage of variant spellings; new senses or phrases added in print and online updates since OED2 (1989). Revisions and additions of this kind were last incorporated into complexity, n. in December 2025. Earlier versions of this entry were published in: OED First Edition (1891) Find out more OED Second Edition (1989) Find out more View complexity in OED Second Edition Cite Permanent link: Chicago 18 Oxford English Dictionary , “ ,” , . Copy to clipboard Copied to clipboard MLA 9 “ ” Oxford English Dictionary , Oxford UP, , . Copy to clipboard Copied to clipboard APA 7 Oxford University Press. (n.d.). In Oxford English dictionary . Retrieved , from Copy to clipboard Copied to clipboard Select format to download citation .ris (Papers, Zotero) .enw (EndNote) .txt (RefWorks) Download Contribute Please submit your feedback for complexity, n. Please include your email address if you are happy to be contacted about your feedback. OUP will not use this email address for any other purpose. Section (required) Factsheet Etymology Meaning & use Pronunciation Frequency Compounds & derived words Other Feedback (required) Submit Citation details Factsheet for complexity, n. Browse entry Nearby entries complexion, v. 1413– complexionably, adv. 1643 complexional, adj. a1398– complexionally, adv. 1646– complexionary, adj. 1656–1704 complexionate, adj. c1430–1750 complexionated, adj. 1650–83 complexioned, adj. 1413– complexioner, n. 1612 complexionless, adj. 1863– complexity, n. 1734– complexive, adj. 1654–72 complexively, adv. 1843 complexly, adv. 1660– complex manifold, n. 1931– complexness, n. 1727– complexum, n. 1664– complexure, n. 1648–75 complexus, n.¹ 1871– complexus, n.² 1828– compliable, adj. 1641– Browse more nearby entries