Definition
to gradually adapt new shoes or equipment through brief periods of use to enhance comfort
She wears her new shoes at home every day to break them in for comfort.
We need to break in our new roller skates by using them gradually.
He advised me to break in my new boots on a local trail before the long hike.
To cautiously and gently operate a new vehicle for a short duration to prevent engine damage.
We should drive carefully during the first few weeks with the new car to break it in and avoid engine damage.
They took the new car for a gentle break-in drive to ensure everything runs smoothly.
I learned to cautiously operate the new car to break it in and prevent any issues.