When you meet someone you know by chance, in other words, coincidentally, you can use run into. When you run into someone, you didn’t have a prior plan to see him or her. So, run into means “meet by chance.”
We use run into + [person] like this:
- I ran into my sister at the mall today.
- Jack ran into his high school sweetheart at a business convention.
- I’m going to Las Vegas. I wonder if I will run into anyone famous!
When you find some information by chance, in other words, coincidentally, you can use run across. When you run across something, you didn’t have a prior plan to look for it. So, run across means “find by chance”
We use run across + [thing] like this:
- I ran across an interesting news article today.
- Jack ran across his high school yearbook when he was cleaning out the closet.
- I ran across a book by John Lennon when I was shopping in a used book shop.
Have you run into anyone recently? Have you run across anything lately?
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