strengthenstrength·en /ˈstreŋθən, ˈstrenθən/ verb1[intransitiveI, transitiveT]ECONOMICS if a currency strengthens, or something strengthens it, the currency increases in valueThe Singapore dollar has gradually strengthened against the pound and the US dollar.
The G7 industrial nations might act later this month to strengthen the yen.
2[transitiveT]ECONOMICSFINANCE to improve the financial situation of a country, company etcThese measures are designed to strengthen the company’s market position.