View synonyms for

sideline

[ sahyd-lahyn ]

Phonetic (Standard)IPA

noun

a line at the side of something.
a business or activity pursued in addition to one's primary business; a second occupation.
an additional or auxiliary line of goods:
a grocery store with a sideline of household furnishings.
Sports.
1. either of the two lines defining the side boundaries of a field or court.
2. sidelines, the area immediately beyond either sideline, where the substitute players sit.
sidelines, the position or point of view taken by a person who observes an activity or situation but does not directly participate in it.

verb (used with object)

sidelined, sidelining.

to render incapable of participation, especially in anything involving vigorous, physical action, as a sport:
An injury to his throwing arm sidelined the quarterback for two weeks.

sideline

/ ˈ��ɪ��ˌ��ɪ�� /

noun

sport a line that marks the side boundary of a playing area
a subsidiary interest or source of income
an auxiliary business activity or line of merchandise

verb

to prevent (a player) from taking part in a game
to prevent (a person) from pursuing a particular activity, operation, career, etc

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Word History and Origins

Origin of sideline¹

An Americanism dating back to 1685–95; side ¹ + line ¹

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Example Sentences

Examples have not been reviewed.

During the tumult, some younger members of the Vietnamese community, already questioning their status on the sidelines of a local political infrastructure that didn’t include them, inserted themselves in the conversation.

From

It follows a one-on-one meeting between Zelensky and Trump at the Vatican on the sidelines of the Pope's funeral on Saturday.

From

Watching intently from the sidelines was Slot, who has brought a more measured approach to the thrilling chaos of Klopp's Liverpool without removing any of the potency.

From

After that outing, however, Yamamoto suffered a shoulder injury that sidelined him for almost three months.

From

Gonsolin has been sidelined with a litany of injuries since August 2023, when he was shut down because of an ulnar collateral ligament tear in his right elbow that required Tommy John surgery.

From

sidelight sideliner

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