bump into

US /bʌmp ˈɪntuː/
UK /bʌmp ˈɪntuː/
"bump into" picture
1.

ばったり会う, 偶然出会う

to meet someone unexpectedly

:
I didn't expect to bump into you here!
ここであなたにばったり会うとは思わなかった!
She often bumps into her old classmates at the supermarket.
彼女はスーパーでよく昔のクラスメートにばったり会う
2.

ぶつかる, 衝突する

to hit something or someone accidentally

:
He didn't see the pole and bumped into it.
彼はポールに気づかず、ぶつかった
Be careful not to bump into anyone in the crowded hallway.
混雑した廊下で誰かにぶつからないように気をつけて。