/ ˌaʊtˈstrɪp; NAmE / verb ( -pp- ) [ vn ]
1.
to become larger, more important, etc. than sb/sth :
Demand is outstripping supply.
2.
to be faster, better or more successful than sb you are competing against
SYN surpass :
Their latest computer outstrips all its rivals.
3.
to run faster than sb in a race so that you pass them