Noun

(en noun)

The action of intervening; interfering in some course of events.

* {{quote-news

, year=2011 , date=October 29 , author=Phil McNulty , title=Chelsea 3 - 5 Arsenal , work=BBC Sport citation , page= , passage=Fernando Torres was recalled in place of the suspended Didier Drogba and he was only denied a goal in the opening seconds by Laurent Koscielny's intervention - a moment that set the tone for game filled with attacking quality and littered with errors.}}

(US, legal) A legal motion through which a person or entity who has not been named as a party to a case seeks to have the court order that they be made a party.

An orchestrated attempt to convince somebody with an addiction or other psychological problem to seek professional help and/or change their behavior.

Noun

(en noun)

A distance in space.

* Milton

'Twixt host and host but narrow space was left, / A dreadful interval .

A period of time.

the interval between contractions during childbirth

(music) The difference (a ratio or logarithmic measure) in pitch between two notes, often referring to those two pitches themselves (otherwise known as a dyad).

(mathematics) A connected section of the real line which may be empty or have a length of zero.

(chiefly, British) An intermission.

(sports) half time, a scheduled intermission between the periods of play

* {{quote-news

, year=2011 , date=November 12 , author= , title=International friendly: England 1-0 Spain , work=BBC Sport citation , page= , passage=Spain made three substitutions at the interval , sending on former Arsenal captain Fabregas, Chelsea's Juan Mata and Liverpool keeper Pepe Reina for Xavi, David Silva and Casillas.}}

(cricket) Either of the two breaks, at lunch and tea, between the three sessions of a day's play