One who or that which sharpens a knife; specifically, an instrument for sharpening table-knives by drawing the blade between two steel edges.(noun)
The Century Dictionary (Public Domain)
Use "knife-sharpener" in a sentence
"My great-grandfather Seamus O'Faolin Queenan briefly worked as a disreputable knife-sharpener and was named in a class-action suit by a man believed to be Jack the Ripper."
"Here the toothless knife-sharpener used to set up his coughing, smoking wheel."
"Bollywood has the best paean to these knifey heroes in Jaya Bhaduri's knife-sharpener cameo in the 1973 hit 'Zanjeer.'"