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intersection - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

From Middle French intersection and its etymon Latin intersectiō.[1][2] By surface analysis, intersect +‎ -ion.

  • IPA(key): /ˈɪntəɹˌsɛkʃən/, /ˌɪntəɹˈsɛkʃən/

intersection (plural intersections)

  2. The junction of two (or more) paths, streets, highways, or other thoroughfares.
    Near-synonym: crossroads

    • 2024, NTSB, Intersection Crash Between Passenger Car and Combination Vehicle, Tishomingo, Oklahoma, March 22, 2022:

      We determined that the car driver’s transportation of multiple teen passengers, limited driving experience, and likely impairment from effects of cannabis at the time of the crash adversely affected her judgment of the danger of entering the intersection in front of the approaching combination vehicle.

  3. Any overlap, confluence, or crossover.

    • 2015, James Lambert, “Lexicography as a teaching tool: A Hong Kong case study”, in Lan Li, Jamie McKeown, Liming Liu, editors, Dictionaries and corpora: Innovations in reference science. Proceedings of ASIALEX 2015 Hong Kong, Hong Kong: The Hong Kong Polytechnic University, page 147:

      Within this melee of intersections between English and Cantonese, the students, being themselves bilingually fluent, were able to navigate with perfect ease in communicative contexts where the provenance of a certain term or expression matters little.

  4. (geometry) The point or set of points common to two geometrical objects (such as the point where two lines meet or the line where two planes intersect).
  5. (set theory) The set containing all the elements that are common to two or more sets.
  6. (sports) The element where two or more straight lines of synchronized skaters pass through each other.[1]
  7. (category theory) The pullback of a corner of monics.
  8. (surveying) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.

junction of two or more paths, etc

in geometry

in set theory

two or more straight lines of synchronized skaters passing through each other

  1. ^ “intersection, n.”, in OED Online Paid subscription required⁠, Oxford: Oxford University Press, launched 2000.
  2. ^ Douglas Harper (2001–2026), “intersection (n.)”, in Online Etymology Dictionary.

Learned borrowing from Latin intersectiō.

  • IPA(key): /ɛ̃.tɛʁ.sɛk.sjɔ̃/

intersection f (plural intersections)

  1. intersection
    Near-synonyms: croisement, carrefour