Service in US state briefly (4)
I believe the answer is:
mass
This might be a double definition.
'service in us' is the first definition.
'mass' can be an answer for 'service' (mass is a church service). I am unsure of the 'in us' bit.
'state briefly' is the second definition.
(abbreviation for Massachusetts; 'briefly' asks for a short form)
Can you help me to learn more?
(Other definitions for mass that I've seen before include "state, briefly" , "Widespread" , "Catholic church service" , "Throng" , "Large amount, body" .)