a distinct period or stage in a process of change or forming part of something's development, a stage in a person's psychological development, especially a period of temporary difficulty during adolescence or a particular stage during childhood

go through a phase, in phase, out of phase

phase in, phase out, phase shift

Formal and Informal Expressions of phase

In different contexts, you can replace 'phase' with suitable alternatives. In a more formal setting, 'stage, component' is apt. In informal speech or writing, 'part, bit' is a commonplace synonym.

phase: Explore its Definition & Usage

phase Definition

1a distinct period or stage in a process of change or forming part of something's development
2a stage in a person's psychological development, especially a period of temporary difficulty during adolescence or a particular stage during childhood

Using phase: Examples

Take a moment to familiarize yourself with how "phase" can be used in various situations through the following examples!

Example
The project is in its final phase.
Example
She's going through a rebellious phase.
Example
The moon goes through different phases throughout the month.
Example
The company is phasing out its older products.

phase Synonyms and Antonyms

Synonyms for phase

Antonyms for phase

Idioms Using phase

go through a phase
to experience a temporary period of change or difficulty
Example
She's going through a phase of rebellion, but I'm sure she'll grow out of it.
in phase
in synchronization or alignment with something else
Example
The two machines need to be in phase for the system to work properly.
out of phase
not in synchronization or alignment with something else
Example
The two machines were out of phase, causing the system to malfunction.

Phrases with phase

phase in
to introduce something gradually or in stages
Example
The new policy will be phased in over the next six months.
phase out
to gradually stop using or producing something
Example
The company is phasing out its older products and introducing new ones.
phase shift
a change in the timing or phase of a wave, especially a sound wave or electromagnetic wave
Example
The phase shift of the sound wave caused an echo effect.

Origins of phase

from Greek 'phaínein', meaning 'to appear'

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Summary: phase in Brief

The term 'phase' [feɪz] refers to a distinct period or stage in a process of change or development, such as 'The project is in its final phase.' It can also refer to a stage in a person's psychological development, exemplified by 'She's going through a rebellious phase.' Phases can be introduced gradually, as in 'phase in,' or stopped gradually, as in 'phase out.' The idiom 'go through a phase' denotes a temporary period of change or difficulty.