break in

Short definition: The phrase break in means to enter a place illegally by force, or to interrupt a conversation suddenly, depending on context, often implying intrusion without permission.

Looking for a clear and natural explanation of the phrasal verb break in? This phrase can sound dramatic because it’s often connected to crime, but it also has everyday meanings related to interrupting someone or making something new feel comfortable through use. Depending on context, it can describe forced entry, speaking suddenly, or slowly getting used to something. Below are detailed meanings with realistic examples so you can clearly understand how break in works in everyday English.

Forms: break in, breaks in, broke in, broken in, breaking in
Related: break-in n., intrude v., interrupt v., adjust v.
Syllable: break-in

1. (Verb) To enter a building illegally, usually by force.

   To break in most commonly means entering a house, office, or vehicle without permission, often by damaging a door or window. This meaning is strongly associated with theft or crime. It suggests force, intrusion, and violation of private space.

   Someone tried to break in through the back door while the family was asleep.
   The alarm system went off when the thief attempted to break in.
   Police responded quickly after neighbors reported that someone was trying to break in.

   Synonyms: force entry, trespass, intrude unlawfully, burglarize, invade, sneak in illegally, smash entry, enter by force, unlawfully enter, break into, violate property, pry open
   Antonyms: enter legally, walk in, use the key, request permission, knock politely, access properly, leave peacefully, secure property, protect, guard, respect boundaries, lock up

2. (Verb) To interrupt someone who is speaking.

   Break in can also mean interrupting a conversation, often suddenly. It suggests stepping into the discussion before someone has finished speaking. This meaning is common in both formal and casual settings.

   He tried to break in during the meeting to clarify a misunderstanding.
   She kept trying to break in, but no one gave her a chance to speak.
   It’s rude to break in when someone is explaining something important.

   Synonyms: interrupt, cut in, interject, speak over, jump in, butt in, intrude verbally, chime in abruptly, talk over, disrupt conversation, step into discussion, interfere verbally
   Antonyms: listen quietly, wait your turn, stay silent, allow speaking, respect turn, hold back comments, remain quiet, observe politely, refrain from speaking, stay patient, let finish, give space

3. (Verb) To make something new comfortable or functional through use.

   When you break in something like shoes, clothes, or equipment, you use it gradually so it becomes softer, more flexible, or more comfortable. This meaning is practical and common in daily life.

   These shoes feel tight now, but they’ll be comfortable once you break them in.
   He spent weeks trying to break in his new baseball glove.
   It takes time to break in a new pair of boots properly.

   Synonyms: soften through use, wear in, condition, adjust gradually, loosen up, train for use, prepare for use, adapt slowly, make flexible, season, stretch naturally, ease into use
   Antonyms: keep stiff, leave unused, neglect use, preserve new condition, maintain rigidity, avoid wearing, stiffen, harden, restrict use, prevent adaptation, keep unused, store away

4. (Verb) To gradually introduce someone into a new job or role.

   In professional settings, break in can mean helping someone become familiar with a new position. It implies training, adjustment, and gaining experience until the person feels confident. This meaning often appears in workplace or skill-based contexts.

   The manager spent time helping to break in the new employee.
   It may take a few months to break in someone who has never worked in this industry before.
   She was gradually broken in to her new responsibilities over several weeks.

   Synonyms: train, introduce gradually, orient, coach, guide, mentor, familiarize, instruct, prepare for role, ease into position, support transition, onboard
   Antonyms: neglect training, throw in unprepared, leave unsupported, ignore orientation, abandon guidance, overwhelm immediately, skip training, deny instruction, leave clueless, rush into role, refuse mentorship, isolate