Set in
phrase
Begin and seems likely to continue.
Rain has set in for the day.

Often appears as...
- set in for the day
- longer-term change has set in
phrase
To become established. Usually refers to weather, diseases or feelings.
Winter has set in.

Often appears as...
- disease has set in
- winter has set in
phrase
To place or fit items into something.
She's set in the last piece of the puzzle.

Often appears as...
- set in the last piece
- gem set in gold
phrase
To happen and be unchangeable.
The plan is set in stone.

Often appears as...
- plan set in stone
- decision set in stone
Usage tips
Idiomatic
phrase
Begin and seems likely to continue.
Rain has set in for the day.

Often appears as...
- set in for the day
- longer-term change has set in
phrase
To become established. Usually refers to weather, diseases or feelings.
Winter has set in.

Often appears as...
- disease has set in
- winter has set in
phrase
To place or fit items into something.
She's set in the last piece of the puzzle.

Often appears as...
- set in the last piece
- gem set in gold
phrase
To happen and be unchangeable.
The plan is set in stone.

Often appears as...
- plan set in stone
- decision set in stone
Usage tips
Idiomatic
Definition 1 of 4

Weather or Mood
Often describes weather or emotional states indicating a continuance.

A sense of unease has set in among the crowd.
Negative Situation
Used to express the start of something unpleasant or unwanted.

Darkness has set in, making the forest seem menacing.
Weather or Mood
Often describes weather or emotional states indicating a continuance.

A sense of unease has set in among the crowd.
Negative Situation
Used to express the start of something unpleasant or unwanted.

Darkness has set in, making the forest seem menacing.
Weather or Mood
Often describes weather or emotional states indicating a continuance.

A sense of unease has set in among the crowd.
Negative Situation
Used to express the start of something unpleasant or unwanted.

Darkness has set in, making the forest seem menacing.
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