Answer:
Depreciate in value, be a weaker currency
Step-by-step explanation:
Depreciation in value means that it is going down in value. you can buy less for the same amount of money today that you could buy last year for example.
Being a weaker currency means that in comparison to other currencies around the world the weaker one has less value. So today 1 USD is worth 0.77 British pounds, but if reversed then the pound would be a weaker currency.