Collocations for phase - noun

early, first, initial, preliminary, primary
start-up
The co-op is still in the start-up phase.

second, secondary, etc.
current, latest, new, present
final, last
intermediate, transition
temporary
critical, crucial, important
the critical phase of the operation

distinct
The period can be divided into three distinct phases.

acute, chronic (both medical)
the acute phase of the disease

recovery (medical)
experimental, testing
The process is still in its testing phase.

planning
during the planning phase of an operation

design
early in the project's design phase

begin, enter, initiate, launch, open, start
Society has entered a technological phase of evolution.

go through
It's just a phase he's going through.

reach
as the team reaches the later phases of product development

mark
the main Catholic rituals that mark important phases in a person's life

complete, pass

during a/the phase
During the first phase of expansion staff will move to the new offices.

in a/the phase
In the earliest phase of mental disorder, relatives feel confused.

phase in
a new phase in the European economy

phase of
a calendar highlighting the phases of the moon