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phase in

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phase in something

also phase something in

to introduce something gradually in stages The plan would phase in a pay raise for many state-government workers. They added too many stores at once instead of phasing them in over time.

Opposite of: phase out something

See also: phase

phase in

Introduce one stage at a time. For example, New technology must be phased in or the office will be overwhelmed. The antonym is phase out, meaning "to bring or come to an end, one stage at a time," as in The department is phasing out all the older computers. [Mid-1900s]

See also: phase

phase in

v.

To introduce something or someone gradually or in stages: The government is now phasing in a new immigration policy. We should phase the new regulations in slowly so that businesses can get used to them.

See also: phase