Knurs is a 5 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.
You can make 45 anagrams from letters in knurs (knrsu).
1350-1400; Middle English knorre, knor; cognate with Middle Low German, Middle Dutch, Middle High German knorre
Addy (Sheffield Glossary) says “knur” is a small round ball, less than a billiard ball.
Peacock (Manley and Corringham Glossary) gives “knur,” a hard wooden ball, the head.