Meet by chance (3,4)
'meet by chance' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bump into that I've seen before include "Unintentionally come across" , "Chance upon" , "Meet by chance - in collision?" , "Come across unexpectedly" , "Happen to meet - ouch!" .)
'meet by chance' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for run into that I've seen before include "Encounter (someone)" , "charge?" , "Encounter by chance - or collision?" , "'Meet by chance (3,4)'" , "Meet (a person) by chance" .)