English Reference
noun · verb

consensus

n. · v.
US /kənˈsɛnsəs/ UK /kənsˈɛnsəs/ con·sen·sus UK spelling consensuses

  1. 01 C1 Advanced AcademicFormal

    n.a general agreement among a group of people.

    n.general agreement or concord among the members of a group or community.

    Simple

    After a long discussion, the committee finally reached a consensus on the new rules.

    In context

    The scientific consensus regarding climate change has strengthened significantly over the last decade as more empirical data has become available.

    Usage

    Often used with the verbs 'reach', 'build', or 'achieve'.

    Pitfall
    The group reached to a consensus. The group reached a consensus.

    The verb 'reach' is transitive here; do not use the preposition 'to' before the noun.

    agreementconcordunanimity
  2. 02 C2 Proficiency Technical Computing

    n.an agreement on a specific piece of data during a computer process.

    n.the process of achieving agreement on a single data value among distributed processes or systems.

    Simple

    The servers must reach a consensus before the transaction can be completed.

    In context

    Distributed ledgers rely on a consensus mechanism to ensure that every node in the network maintains an identical copy of the database.

    Usage

    Commonly appears in the phrase 'consensus mechanism' or 'consensus algorithm'.

  3. 03 C2 Proficiency Formal

    v.to talk with others in order to reach a group agreement.

    v.to engage in discussions or negotiations with the specific intent of reaching a collective agreement.

    Simple

    The leaders spent the afternoon consensusing on the final version of the treaty.

    In context

    The board members spent several hours consensusing the proposed budget before putting it to a formal vote.

    Usage

    This verb use is much less common than the noun form and is restricted to highly formal or bureaucratic contexts.

Usage general consensus · reach consensus

The current expert consensus is that perimenopausal symptoms are not histamine-driven, says Huang.

The Guardian· 14 Aug 2026

The negotiations have tested to the limit the UN consensus system – which requires all countries to sign up to the final agreement.

The Guardian· 13 Aug 2026

Borrowed from Latin cōnsēnsus (“agreement, accordance, unanimity”), from cōnsentiō (“feel together; agree”); see consent.

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

This entry
Origin Latin cōnsēnsus
Level C1 · Advanced
Frequency Common
Updated