Word.ws English Dictionary

clopen

Syllables: clo·penUK/ˈkləʊ̯.pən/US/ˈkloʊ̯.pən/

clopen adjective: both open and closed.

Adjective

clopen (not comparable)

  1. Both open and closed.
    • A subset of a metric space is clopen iff it is both closed and open. A metric space is called zero-dimensional iff there is a base for the open sets consisting of clopen sets.1990, Gerald A Edgar, Measure, Topology, and Fractal Geometry, page 80
    • FACT 1. Disjoint closed subsets of #92;mathbb#123;N#125;#92;mathbb#123;N#125; may be separated by disjoint clopen sets.1999, S. J. Dilworth, “On the extensibility of certain homeomorphisms and linear isometries”, in Krzysztof Jarosz, editor, Function Spaces: Proceedings of the Third Conference on Function Spaces...

Noun

clopen (plural clopens)

  1. A pair of work shifts in which a worker works a closing shift one day and then works an opening shift the following day.
    • James is on vacation, so I've got to do a clopen this weekend to cover his shifts.

Forms of clopen

pluralclopens

Origin of clopen

Blend of closed + open.

Words that rhyme with clopen

Questions about clopen

What does clopen mean?
Clopen means both open and closed.
What part of speech is clopen?
Clopen can be an adjective or a noun.
How do you pronounce clopen?
Clopen is pronounced /ˈkləʊ̯.pən/ (UK).

Words near clopen in the dictionary

  1. clootie dumpling
  2. clootie dumplings
  3. clooties
  4. clop
  5. clopamide
  6. clopen
  7. clopens
  8. clopenthixol
  9. clopentixol
  10. cloperastine
  11. clopersatine

Source and license

Adapted from Wiktionary: clopen (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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