To find or discover something or someone unexpectedly, without looking for it.
I came across an old photo album while cleaning the attic.
A: Where did you get that book? B: I just came across it at a second-hand shop yesterday.
During my research, I came across several interesting articles that changed my perspective.
Common mistake
✗I came across with an interesting article.
✓I came across an interesting article.
'Come across' takes the object directly — no 'with' (that changes the meaning).
Tell it apart
I came across an old letter.
found it by chance
He comes across as shy.
gives that impression
Use 'come across' when you find something by accident, not when you search for it.'Come across' is different from 'find' because it means you weren't looking for it.