as and when

as and when

When it becomes necessary to do something. We'll worry about that issue as and when it arises, all right?
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Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

as and when

used to refer to an uncertain future event.
1996 She The single most important strategy you can adopt to boost your energy levels is to learn to deal with an issue as and when it rears its head.
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Farlex Partner Idioms Dictionary © Farlex 2017

ˌas and ˈwhen

whenever; at the moment when: We’ll deal with individual problems as and when they arise.
See also: and
Farlex Partner Idioms Dictionary © Farlex 2017
See also: