Phasing out something can take several years and isn't usually done abruptly.

Time Span

Used to describe official plans by governments or organizations to end something.

Policy Changes

Often used for things considered outdated or harmful.

Commonly used to describe business decisions on products or services.

Indicates a company's adaptation to new market trends or demands.

Shows progression from old to new technology.

Suggests ongoing efforts to replace less effective methods or tools.