run past

blast from the past

Something or someone that a person has not seen for a long time that evokes nostalgic feelings.

break into a run

To start running.

common run

Ordinary persons, things, or events.

dry run

A practice or rehearsal; especially, one that goes through all the motions of a physical process but without the raw material or workpiece present.

dummy run

A trial or practice before the real attempt.

ghost from one's past

Something unpleasant from one's past that "haunts" them (makes them feel uneasy) to the present day.

good run

Success over an extended period.

hit and run

Sexual intercourse followed by a prompt departure; a one-night stand.