upturn noun
ADJ. dramatic, sharp | slight | economic
VERB + UPTURN be on, take Sales are on the upturn. Their fortunes have taken an upturn in recent months.
UPTURN + VERB come We expect an increase in demand when the economic upturn eventually comes.
PREP. ~ in a sharp upturn in oil prices
You can also check other dicts: upturn (English, 中文解释 ), wordnet sense, Collins Definition