1. run into
i was walking by the street wen i run into one of my friend i was driving the car and i run into a tree.
You'll run into problems if you take this case.
Be careful not to run into debt.
Young people often run into difficulties.
2. meet by accident
English word "bump into sb"(meet by accident) occurs in sets:
phrasal verbs - form 20.03 - till 14.053. bump into
bump into
They're smart enough, we hope, not to bump into each other.