Definition of “sideline” - English Dictionary

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“sideline” in English

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sidelinenoun [ C ]

uk ​ /ˈsaɪd.laɪn/ us ​ /ˈsaɪd.laɪn/

sideline noun [ C ] (JOB)

› an activity that you do as well as your main job:

Jim works in a bank, but teaches French in the evenings as a sideline.

Idiom(s)

on/from the sidelines

sidelineverb [ T ]

uk ​ /ˈsaɪd.laɪn/ us ​ /ˈsaɪd.laɪn/

› If a sports player is sidelined they are prevented from playing or competing, and can only watch:

Johnson has been sidelined through injury.

› to stop someone taking an active and important part in something:

He was sidelined after criticizing the policy.

Thesaurus: synonyms and related words

(Definition of “sideline” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“sideline” in American English

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sidelinenoun [ C ]

us ​ /ˈsɑɪdˌlɑɪn/

sideline noun [ C ] (ACTIVITY)

› an activity that is less important than the main one:

Jean teaches French in the evening as a sideline.

sideline noun [ C ] (MARK ON GROUND)

› (in some sports, esp. football) a line marking the side of the area of play:

The ball fell just outside the sideline.
fig. I don’t like dancing, I’d rather watch from the sidelines (= not to be directly involved).

Idiom(s)

on the sidelines

sidelineverb [ T ]

us ​ /ˈsɑɪdˌlɑɪn/

sideline verb [ T ] (REMOVE PLAYER)

› to remove a player from a game:

He was sidelined because of injuries.

(Definition of “sideline” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“sideline” in Business English

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sidelinenoun [ C ]

uk ​ /ˈsaɪdlaɪn/ us ​

› a business activity that someone does in addition to their main business:

For many companies, producing own-label goods is not a sideline, it's a strategy for growth.
a sideline in sth The company has been developing a sideline in closed-circuit television since buying the electronics business last year.
on the sidelines

› not being used or not involved in an activity:

The absence of new products is keeping consumers on the sidelines.
stay/wait/sit on the sidelines

sidelineverb [ T ]

uk ​ /ˈsaɪdlaɪn/ us ​

› to force someone or something into a situation in which they have less influence or importance than before:

After I got pregnant, I felt that my bosses were sidelining me.
The oil industry would be very unhappy if this legislation was sidelined.

(Definition of “sideline” from the Cambridge Business English Dictionary © Cambridge University Press)

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