What are the opposite words for birrs?

Birrs, an uncommon word that refers to a Scottish unit of currency, does not have many antonyms. However, one could argue that the opposite of birrs is any other unit of currency that is not used in Scotland. This could include the U.S. dollar, the euro, the pound sterling or the Japanese yen. Another possible antonym could be the word "barter," which refers to exchanging goods and services without the use of currency. In this way, the opposite of birrs would be conducting business through bartering instead of using a specific unit of currency.

Antonym of the day

getting way
approve, begin, go.