phase out

phrasal verb·1 sense·particle out

Usefulness

Meanings

1

Stop using or providing something gradually

Why “out”? Pushing outward to eliminate. What is removed is sent away.

I helped phase out a legacy service without disrupting customers.
I helped stop using an old service gradually without causing problems for customers.
The city phased out diesel buses over five years.
The city gradually stopped using diesel buses over five years.

Don't confuse with

phase outphase in

Phase out means stop using or providing something gradually. Phase in means introduce something gradually in stages.

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I helped phase out a legacy service without disrupting customers. What does it mean?

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