# coherent

> English word · Adjective · IPA /kəʊˈhɪə.ɹənt/ · frequency rank #12,388

## Definitions
1. Unified; sticking together; making up a whole.
2. Orderly, logical and consistent.
3. Aesthetically ordered.
4. Having a natural or due agreement of parts; harmonious: a coherent design.
5. Of waves having the same direction, wavelength and phase, as light in a laser.
6. Attaching or pressing against an organ of the same nature.
7. Belonging to a specific class of sheaves having particularly manageable properties closely linked to the geometrical properties of the underlying space. See Coherent sheaf on Wikipedia.Wikipedia
8. In a technical sense, determined by the (topology of) the subsets. Formally, Such that 𝒯 is the finest topology on T for which the inclusion maps ιₐ:C_a→T are continuous, where each C_a is considered with its subspace topology.
9. Finitely generated and such that all finitely generated submodules are finitely presented.
10. Such that every finitely generated (left) ideal is finitely presented.

## Etymology
From Middle French coherent, from Latin cohaērēns, from co- + haereō. By surface analysis, cohere + -ent.

## Easily confused with
- **coherence** (https://plainspell.com/en/vs/coherence-vs-coherent)

## Common misspellings (12)
`ccoherent`, `choerent`, `coehrent`, `coheernt`, `coherennt`, `coherentt`, `coheretn`, `cohernet`, `coherrent`, `cohherent`, `cohreent`, `ocherent`

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