intr.v., -vened, -ven·ing, -venes.

1. To come, appear, or lie between two things: You can't see the lake from there because the house intervenes.
2. To come or occur between two periods or points of time: A year intervened between the two dynasties.
3. To occur as an extraneous or unplanned circumstance: He would have his degree by now if his laziness hadn't intervened.
4. 1. To involve oneself in a situation so as to alter or hinder an action or development: “Every gardener faces choices about how and how much to intervene in nature's processes” (Dora Galitzki).
   2. To interfere, usually through force or threat of force, in the affairs of another nation.
5. Law. To enter into a suit as a third party for one's own interests.

[Latin intervenīre : inter-, inter- + venīre, to come.]

intervenor in'ter·ve'nor or in'ter·ven'er n.
intervention in'ter·ven'tion (-vĕn'shən) n.
interventional in'ter·ven'tion·al adj.

v

Definition: mediate
Antonyms: ignore, leave alone

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This entry contains information applicable to United States law only.

An individual who is not already a party to an existing lawsuit but who makes himself or herself a party either by joining with the plaintiff or uniting with the defendant in resistance of the plaintiff's claims.

The act of intervening in a disease or epidemiological sequence.

• i. strategy — in the sequence of examination, diagnosis, treatment and control it is necessary, especially in herd problems, to design a strategy for intervening, either to test the hypothesis or to plan the treatment and control sequence which may require a change in the environment, the feeding regime or the breeding practices; for most efficient use of resources the intervention may need detailed planning.
• i. study — testing an hypothesized epidemiological cause–effect relationship by intervening in a population and modifying a supposed causal factor and measuring the effect of the change.

Dansk (Danish)
v. intr. - gribe ind, lægge sig imellem, mægle, intervenere

Nederlands (Dutch)
tussenbeide komen, ingrijpen, ertussen komen

Français (French)
v. intr. - intervenir, arriver, se produire, s'interposer

Deutsch (German)
v. - eingreifen, intervenieren, dazwischenkommen

Ελληνική (Greek)
v. - παρεμβαίνω, επεμβαίνω, (δια)μεσολαβώ, (για χρόνο) περνώ

Italiano (Italian)
intervenire, interporsi

Português (Portuguese)
v. - intervir

Русский (Russian)
вмешиваться, происходить

Español (Spanish)
v. intr. - tomar parte, participar, intervenir

Svenska (Swedish)
v. - komma emellan, intervenera, medla, infalla

中文（简体） (Chinese (Simplified))
插入, 干涉, 调停

中文（繁體） (Chinese (Traditional))
v. intr. - 插入, 干涉, 調停

한국어 (Korean)
v. intr. - 사이에 들다, 방해하다, 중재하다

日本語 (Japanese)
v. - 間にある, 邪魔をする, 仲裁に入る, 調停する, 間に起こる, 介入する

العربيه (Arabic)
‏(فعل) يطرأ, يتخلل, يتدخل‏

עברית (Hebrew)
v. intr. - ‮התערב, הפריע, הפריד, התרחש בינתיים, חלף בינתיים, התערב במשפט כצד שלישי, תיווך‬

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