A group of warriors or nobles accompanying a king or other leader(noun)
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Use "comitatus" in a sentence
"Friday's term was posse comitatus, which is defined as:"
"January 17th, 2010 at 6: 55 pm tombaker says: what time does the posse comitatus party start?"
"Update: An investigation has begun as to who ordered the troops outside of their base in direct violation of the posse comitatus and insurrection acts."