English Reference
noun

conjunction

n.
US /kənˈdʒəŋkʃən/ UK /kəndʒˈʌŋkʃən/ con·junc·tion UK spelling conjunction's, conjunction's

  1. 01 B2 Upper Intermediate Technical Science

    a word used to connect other words, phrases, or parts of a sentence.

    a part of speech used to connect words, phrases, or clauses, indicating the semantic relationship between the joined elements.

    Simple

    Words like 'and', 'but', and 'because' are common conjunctions in English.

    In context

    The student struggled to distinguish between coordinating and subordinating conjunctions when analyzing complex sentence structures.

    Usage

    In linguistics, it refers to a specific functional category of words.

  2. 02 C1 Advanced Formal

    the situation where two or more things happen at the same time or work together.

    the state of being joined or occurring together; a coincidence or combination of events.

    Simple

    The success of the project was due to a conjunction of hard work and good luck.

    In context

    The economic crisis was caused by a rare conjunction of high inflation, energy shortages, and political instability.

    Usage

    Often used in the phrase 'in conjunction with'.

    separationdisconnection
  3. 03 C2 Proficiency Technical Science

    when two planets or stars appear to be in the same place in the sky.

    the alignment of two celestial bodies such that they have the same celestial longitude as observed from a third body, usually Earth.

    Simple

    Amateur astronomers gathered to watch the conjunction of Jupiter and Saturn.

    In context

    The rare planetary conjunction provided researchers with a unique opportunity to calibrate their deep-space observational equipment.

  4. 04 C2 Proficiency Technical Math

    a statement that uses 'and' to join two other statements.

    a compound proposition that is true if and only if all its component propositions are true.

    Simple

    In logic, a conjunction is only true if both parts of the sentence are true.

    In context

    The truth table demonstrates that the conjunction of two variables remains false unless both inputs are simultaneously verified.

    disjunction

Usage conjunction likely · conjunction little · conjunction major

The two are drawing together ahead of a conjunction later that day when the moon will pass less than a degree north of the giant planet.

The Guardian· 7 Sept 2026

Yes, there will be several concerts and foodie events running in conjunction with the F1 Grand Prix.

The Local· 4 Sept 2026

From Old French conjonction, from Latin coniūnctiō (“joining”), from coniungere (“to join”).

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

This entry
Origin Latin coniūnctiō
Level B2 · Upper Intermediate
Frequency Frequent
Updated