Confused *:-? thinking

I became confused when I heard the word "Service" used with
these agencies:

Internal Revenue 'Service'
U.S. Postal 'Service'
Telephone 'Service'
Cable TV'Service'

Civil 'Service'
State, City, County & Public 'Service'
Customer 'Service'

This is not what I thought 'Service' meant.

But today, I overheard two farmers talking, and one of them said he had hired a bull to 'Service' a few cows.

BAM!!! It all came into focus. Now I understand what all those
agencies are doing.