Currency check? (3)
I believe the answer is:
dam
This might be a double definition.
'currency' is the first definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'check?' is the second definition.
(dam can mean to check or restrict water)
Can you help me to learn more?
(Other definitions for dam that I've seen before include "River blockage" , "Barrier to hold back water" , "Embankment" , "Mad as an animal mum" , "Horse's mother" .)