breaking in

phrasal verb
UK /ˌbreɪkɪŋ ˈɪn/
US /ˌbreɪkɪŋ ˈɪn/

Making something new get comfortable and ready to use.

She is breaking in her new shoes by wearing them around the house.


OTHER MEANINGS

2. Entering a place by force.

The thieves were breaking in through the back window.

3. Training someone new for a job or role.

The coach is breaking in the rookie players this season.

4. Interrupting a conversation suddenly.

He kept breaking in while we were talking.