# conjugate

/ˈkɑndʒəˌɡeɪt/ (US) · CEFR C2 · Noun

Source: https://englishreference.com/word/conjugate
Updated: 2026-05-20

## Definition

a group of things that are related to each other in a specific way. In math, it is a pair of numbers or expressions that are linked by a sign change.

For teachers: a group of related entities or a pair of mathematical expressions that are connected by a specific transformation, such as a sign change. Often used in the context of complex numbers or grammar to describe related forms.

## Examples

- The two complex numbers are conjugates of each other.
- In grammar, the verb 'to be' has several conjugates depending on the subject and the tense.
- The chemical properties of the conjugate base are determined by the strength of the original acid, illustrating a fundamental principle in acid-base chemistry.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.