# diagram

> English word · Noun · IPA /ˈdaɪ.ə.ɡɹæm/ · frequency rank #8,921

## Definitions
1. 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. A graph or chart.
3. 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".
4. A crossword grid.

## Etymology
From French diagramme, from Italian diagramma, from Ancient Greek διάγραμμα (diágramma).

## Common misspellings (10)
`daigram`, `ddiagram`, `diagarm`, `diaggram`, `diagramm`, `diagrma`, `diagrram`, `diargam`, `digaram`, `idagram`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/diagram