Explanation

  • To meet someone unexpectedly or by chance.

Origin

  • Run into: Appears around the early 20th century. It evokes the image of physically, though accidentally, colliding or 'running into' someone while moving. This transferred metaphorically to an unplanned encounter.
  • Bump into: Similar timeframe and concept. Bump implies a light collision, reinforcing the accidental nature of the meeting.

Alternatives

Slang/Informal:

  • (No common direct slang replacements, these idioms are standard informal)

Vulgar/Emphatic:

  • (Not typically used for this expression, unless describing the shock): Fucking ran into my ex, can you believe it?

Milder/Standard:

  • Encounter (More formal)
  • Meet by chance

Situational Appropriateness

  • Very common in informal and semi-formal conversations.
  • Appropriate for everyday storytelling.
  • Encounter might be used in more formal reporting.

Misunderstanding Warnings

  • The literal meaning involves a physical collision. While derived from this, the phrasal verb almost always means an unplanned meeting. Non-native speakers might initially picture an actual accident.
  • Also distinguish from run into meaning to encounter problems (e.g., We ran into some difficulties with the project). Context (meeting a person vs. encountering a problem/obstacle) is key.

Examples

  • I ran into my old teacher at the supermarket yesterday.
  • Guess who I bumped into downtown? Your cousin!
  • It's funny how you always run into people when you least expect it.
  • Sorry I'm late, I ran into traffic. (Can also mean encounter an obstacle, but the 'meet someone' meaning is very common).

Dialogue

Chen: You won't believe who I ran into at the coffee shop this morning!

Maria: Who?

Chen: Mr. Davidson, our old history teacher!

Maria: No way! I haven't seen him in ages. How is he?

Chen: He's retired now, looks great. We chatted for a few minutes. It was nice bumping into him.

Social Media Examples

  • Facebook Status: Small world! Ran into my childhood best friend at the airport today after 10 years!
  • Tweet: Just bumped into @CelebrityName downtown. Tried to play it cool but pretty sure I failed. 😂 #starstruck
  • Instagram Story: (Selfie with someone) Look who I ran into! So good catching up with [Name]!

Response Patterns

  • Surprise/Interest: Oh really?, No way!, What a coincidence!, How are they doing?
  • Sharing own experience: That happens to me all the time!, Small world!

Common Follow-up Questions/Actions

After someone says they ran into/bumped into someone:

  • Ask about the person encountered (How is [Name]?, What are they up to these days?).
  • Ask about the encounter (What did you talk about?, Was it awkward?).
  • Comment on the coincidence (Small world, isn't it?).

Conversation Starter

  • Yes, telling someone Guess who I ran into today? or starting a story with I bumped into [Name]... can be a good way to share news and start a conversation.

Intonation

  • Stress often falls on run/bump, into, and the person encountered. Often delivered with slight surprise or as sharing interesting news.
  • You'll never guess who I RAN INto!
  • I BUMPED INto SARAH at the mall.

Generation Differences

  • Universally used and understood across all generations.

Regional Variations

  • Both run into and bump into are common in most major English-speaking regions (US, UK, Canada, Australia). Usage frequency might vary slightly by region or personal preference.
Put off (a task/meeting)