What does intervenor mean?
An intervener is a person who steps into a dispute, proceeding, or situation in order to assist, mediate, or represent interests that might otherwise be overlooked. In legal and administrative contexts, the term often refers to someone permitted to join a case or hearing as a representative of an organization or affected group. The word can also describe a person who intervenes more generally to settle a disagreement or address a problem. It is more specific and less common than terms such as “helper” or “mediator,” because it implies deliberate entry into an existing dispute or proceeding. The alternative spelling “intervener” is especially common in British English, while “intervenor” is frequently encountered in North American legal usage.
nounA person who intervenes, especially one who mediates or seeks to participate in a legal proceeding. The word is less common than the variant “intervener.”
- A person who intervenes, especially one who mediates or seeks to influence or participate in a legal proceeding.
"The court appointed an intervener to represent the interests of the affected group."
"A skilled intervener helped the disputing parties reach an agreement."
"The organization sought intervener status before the commission hearing."
The usual plural in legal and institutional contexts; “interveners” is also common when referring to people who intervene generally.
"Several intervenors submitted written arguments to the court."
An intervener steps into a situation others are leaving alone—and sometimes becomes the legal voice of people who were not originally heard.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does intervenor come from?
The word comes through English from the Latin “intervenire,” formed from “inter,” meaning “between,” and “venire,” meaning “to come.” In Latin, the verb referred to coming between or intervening, and English borrowed it in the early 17th century in the sense of coming between parties or interfering in a course of events. The derived noun “intervenor” developed alongside related forms such as “intervention” and “intervener,” and its modern legal sense reflects the older idea of entering between parties in a dispute.
Related word forms
How intervenor is actually used
This is a relatively uncommon word, chiefly encountered in legal and institutional settings. In American English it is often distinguished in spelling from “intervener,” while British English more commonly uses “intervener.”
Easily confused with intervenor
“Intervenor” and “intervener” are spelling variants with the same basic meaning, though the former is especially associated with legal contexts in North American usage.