up ‧ turn /ˈʌptɜːn $ -tɜːrn/ BrE AmE noun [countable]
[ Word Family: noun : ↑ turn , ↑ upturn , ↑ turning ; verb : ↑ turn , ↑ overturn ; adjective : ↑ upturned ]
an increase in the level of something, especially in business activity OPP downturn
upturn in
an upturn in the housing market
an economic upturn