The phrasal verb "break in" is predominantly used in informal contexts and has several meanings depending on the context. In its most common usage, it refers to entering a place, often a building or property, illegally or by force. This usage is typical in narratives involving crime or security, as in "The burglar managed to break in through the back door." It can also mean interrupting a conversation or activity, usually implying a lack of manners or abruptness, as in "She broke in on our discussion to share her opinion." Additionally, "break in" is used in the context of adjusting or acclimating to something new, such as breaking in new shoes or new staff by getting them used to the role, e.g., "I need to break in my new shoes before the hike." Despite its informal roots, the phrasal verb can appear in more formal contexts when discussing procedures related to acclimatization or interruptions during structured activities.
B2
UpperIntermediate
1. To enter a place forcibly and illegally.
The burglar decided to break in through the back door.
Someone broke in while we were on vacation.
2. To interrupt someone speaking.
I don't mean to break in, but I have some important news to share.
She always breaks in when others are speaking during meetings.
3. To wear or use something new until it becomes comfortable.
I need to break in my new shoes before the marathon.
He took a week to break in his new guitar.
4. To train someone in a new job or activity.
The manager is responsible for breaking in the new employee.
It usually takes a month or so to break in new staff members.