English Reference

Word

conjugation

Phoneticscon·ju·ga·tion

US/ˌkɑndʒəˈɡeɪʃən/

UK/kˌɒndʒuːɡˈeɪʃən/

Definitions

01verb forms

B2

n. the way a verb changes its ending to show who is doing the action and when it happens.

n. the inflection of a particular verb, or the complete set of inflected forms of a verb.

“The teacher asked us to write down the full conjugation of the verb 'to be'.”

“Mastering French requires a thorough understanding of irregular conjugation, as many common verbs do not follow standard inflectional patterns.”

Technical

Pitfall

I am studying the conjugation of the noun 'table'.

I am studying the declension of the noun 'table'.

In linguistics, 'conjugation' applies to verbs, while 'declension' applies to nouns, adjectives, and pronouns.

Synonyms

inflectiondeclension

02verb categories

C1

n. a group of verbs that all change their endings in the same way.

n. a class of verbs that share a similar set of inflected forms.

“In Latin, verbs are divided into four main conjugations.”

“The linguist categorized the newly discovered dialect's verbs into three distinct conjugations based on their thematic vowels.”

Technical

Synonyms

03biology

C1 · Science

n. the process where two tiny organisms join together to exchange genetic material.

n. the temporary union of two bacteria or unicellular organisms for the exchange of genetic material.

“Bacteria can become resistant to antibiotics through the process of conjugation.”

“During bacterial conjugation, a donor cell transfers a plasmid to a recipient cell through a pilus, facilitating horizontal gene transfer.”

Technical

Synonyms

04chemistry

C2 · Science

n. a special arrangement of atoms in a molecule that helps it stay stable.

n. a system of connected p-orbitals with delocalized electrons in a molecule, typically represented as alternating single and multiple bonds.

“The bright color of the dye is caused by the conjugation in its molecules.”

“The stability of the aromatic ring is largely attributed to the extensive conjugation of its pi-electron system.”

Technical

05mathematics

C2 · Math

n. a specific way of changing one mathematical object into another related one.

n. a mapping that sends an element x to gxg⁻¹ within a group, or the operation of finding a complex conjugate.

“We used complex conjugation to solve the quadratic equation.”

“In group theory, conjugation by an element defines an inner automorphism that preserves the algebraic structure of the group.”

Technical

Synonyms

Real-World Examples

“Even though the statement is preceded by a que , it’s not the subjunctive, so don’t worry about more complicated verb conjugations.”
The Local · 15 Sept 2026

Etymology

Borrowed from Latin coniugātiō (“combining, connecting; conjugation”), from coniugō (“join, unite together”). Equivalent to conjugate + -ion.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

conjugateNounconjugationNoun

Related words

Domains

BiologyChemistryGrammarLawMathematics

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

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English Reference