English Reference
noun

cohesion

n.
US /koʊˈhiʒən/ UK /kəʊhˈiːʒən/ co·he·sion UK spelling cohesions

  1. 01 C1 Advanced Academic

    the way that people in a group or society stay united and work well together.

    the state of unity or togetherness within a social group or organization. Uncountable in this abstract sense.

    Simple

    The team lacked cohesion and struggled to finish the project on time.

    In context

    The government introduced new policies aimed at improving social cohesion in neighborhoods affected by recent economic decline.

  2. 02 C1 Advanced AcademicTechnical

    the way that words and sentences are linked together to make a text easy to follow.

    the grammatical and lexical linking within a text or sentence that holds a discourse together and gives it meaning.

    Simple

    Using words like 'however' and 'therefore' helps improve the cohesion of your essay.

    In context

    The student's essay was rich in vocabulary but lacked the structural cohesion necessary to guide the reader through the complex argument.

    incoherence
  3. 03 C1 Advanced Technical Science

    the natural force that makes molecules of the same substance stick to each other.

    the intermolecular force that holds together the molecules of a solid or liquid. Often contrasted with adhesion.

    Simple

    Surface tension is caused by the cohesion between water molecules.

    In context

    The experiment demonstrated how the strong internal cohesion of the liquid allowed it to form perfect droplets on the glass surface.

  4. 04 C2 Proficiency Technical Computing

    how well the different parts of a computer program or system fit together to do one job.

    the degree to which the elements inside a module or system belong together. High cohesion is generally associated with robust software design.

    Simple

    Good software design requires high cohesion within each part of the code.

    In context

    The lead architect insisted on refactoring the module to increase its cohesion, ensuring that each function served a single, well-defined purpose.

For MONUSCO the project serves a dual purpose: Responding to a public health emergency and contributing to stabilisation efforts by strengthening community cohesion.

UN News· 15 Aug 2026

He is also laudably ready to admit when there is no “ready-made answer” to liberalism’s tensions – between, say, a value of community cohesion and a value of welcoming others who are different.

The Guardian· 7 Aug 2026

Attested from the late 17th century, borrowed from French cohésion, from Latin cohaesiō, cohaesiōnem.

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

This entry
Origin Latin cohaesiō
Level C1 · Advanced
Frequency Frequent
Updated