bump into

Normally, most proteins zip around the cell bumping into other molecules until they locate the molecule they work with or act on.

There, they bumped into a bunch of coaching friends who had attended their wedding the day before.

“Used to be that you couldn’t walk out there without bumping into somebody,” said Sears.

Kevin Charles said he used to bump into the MP when he was out shopping.

Robyn went to the Tavern in the Town on 21 November 1974 hoping to bump into a prospective boyfriend before he started his factory night shift.