English Reference
noun

offender

n.
US /əˈfɛndɝ/ UK /əfˈɛndɐ/ of·fend·er UK spelling offenders

  1. 01 B2 Upper Intermediate Law

    a person who commits a crime or breaks a law.

    a person who commits an illegal act. Often used with modifiers to describe the frequency or type of crime.

    Simple

    The judge decided to give the first-time offender a lighter sentence.

    In context

    The rehabilitation programme specifically targets repeat offenders who have struggled to reintegrate into the community after serving previous sentences.

    criminallawbreakerculprit
  2. 02 C1 Advanced Formal

    someone who does something wrong or breaks a social rule.

    a person who causes displeasure or violates a social, moral, or administrative rule.

    Simple

    In this office, anyone who leaves dirty dishes in the sink is the main offender.

    In context

    While several factors contribute to the decline in local bird populations, habitat loss remains the primary offender in this ecological crisis.

    wrongdoertransgressor

Usage offenders out of jail

Bear, of Walthamstow, east London, had been placed on the sex offenders register in 2023 for sharing a private sex tape of Harrison.

BBC News· 14 Aug 2026

Q: [From Jack Fenwick from the BBC] Are there other countries where you might send foreign offenders?

The Guardian· 10 Aug 2026

From Middle English offendour, offender, offendir, equivalent to offend + -er.

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

This entry
Origin Middle English offendour
Level B2 · Upper Intermediate
Frequency Frequent
Updated