Crossword Genius

Service in US state briefly (4)

Ross

I believe the answer is:

mass

I'm a little stuck... Click here to teach me more about this clue!

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" .)

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