Word.ws English Dictionary

Plural of diagram

regular plural

The plural of diagram is diagrams.

Forms of diagram

Singulardiagram /ˈdaɪ.ə.ɡɹæm/
Pluraldiagrams
Countablecountable

Diagrams in a sentence

  • Electrical diagrams show device interconnections.
  • The timing and diagramming staff, too, were on duty for up to 21 hours devising 80 engine, 60 guards' and 25 carriage working diagrams.1961 March, “Talking of trains”, in Trains Illustrated, page 131
  • I've been studying for my electronics exam so hard, for so long, that now I've got circuit diagrams on the brain!From the entry on the brain
  • Do you remember learning about cell diagrams in high school biology?2025 February 1, Jeanna Bryner, “In this issue: From the editor: Blobs and Green Monsters”, in Scientific American, page 4. From the entry condensate
  • But unlike in Feynman diagrams, the amplituhedron does not start with space-time that has these properties.2017 July 29, Anil Ananthaswamy, “The new shape of reality”, in New Scientist, number 3136, page 31. From the entry amplituhedron

Meaning of diagram

  1. noun A plan, drawing, sketch or outline to show the function or operation of something, or to show the relationships between the parts of a whole.
  2. noun A graph or chart.
  3. noun A functor from an index category to another category. The objects and morphisms of the index category need not have any internal substance, but rather merely outline the connective structure of at least some part of the diagram's codomain. If the index category is J and the codomain is C, then the diagram is said to be "of type J in C".

Full definition of diagram

Questions about the plural of diagram

What is the plural of diagram?
The plural of diagram is diagrams.
Is diagram countable?
Diagram is a countable noun.

Source and license

Adapted from Wiktionary: diagram (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Plural of diagram.” Word.ws, https://word.ws/plural/diagram. Based on Wiktionary, CC BY-SA 4.0.