Shamus Definition
 shäməs, shā- 
    noun
  
 A police officer.
 American Heritage 
A policeman.
 Webster's New World 
A private detective.
 Webster's New World 
Other Word Forms of Shamus
Noun
Singular:
 shamusPlural:
 shamusesOrigin of Shamus
- Perhaps from the common Irish name Séamus James (from the many Irish Americans who traditionally served on American police forces) or from shammes (the duties of a detective being likened to those of a shamash) - From American Heritage Dictionary of the English Language, 5th Edition 
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