Be your/somebody’s baby
phrase
To be someone's responsibility or area of expertise, often a project or task.
This project is my baby, I've been working on it for months.

Often appears as...
- this project is my baby
- this case is my baby
Usage tips
Idiomatic
phrase
To be someone's favorite or most cherished person or thing.
His new car is his baby, he won't let anyone else drive it.

Often appears as...
- his car is his baby
- his job is his baby
Usage tips
Idiomatic
phrase
To be someone's responsibility or area of expertise, often a project or task.
This project is my baby, I've been working on it for months.

Often appears as...
- this project is my baby
- this case is my baby
Usage tips
Idiomatic
phrase
To be someone's favorite or most cherished person or thing.
His new car is his baby, he won't let anyone else drive it.

Often appears as...
- his car is his baby
- his job is his baby
Usage tips
Idiomatic
Definition 1 of 2

Ownership Feeling
Implies a deep personal investment and often pride in the task or project.

Revamping our website is my baby, I’ve dedicated a lot of effort to it.
Emotional Attachment
Suggests strong emotional connection, similar to how one feels about a child.

I nurtured this initiative from scratch; it’s truly my baby.
Responsibility
Indicates that a person is the main one answerable for the success or failure of a project.

I'm leading the research team; this experiment is my baby.
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