Gnashes is a 7 letter English word. It's valid Scrabble word worth 9 points. It's valid Words with friends word worth 10 points.
You can make 129 anagrams from letters in gnashes (aeghnss).
1490-1500; variant of obsolete gnast, Middle English gnasten; compare Old Norse gnastan gnashing of teeth
Men and women will gnash their teeth against their own children.
So the North Wind could only gnash his teeth, and say, "Whoo, whoo!"
He would hunt for me, and gnash his teeth at the escape of his prey.
All at once he put his hand on his sword, and gnash his teeth.
They fall into a rage, and gnash with their teeth, as they do not dare openly to shout.
With them I can with one gnash divide a knight in half at the waist.
Then she would stare at the child and gnash her teeth as though with hate.
All the world must respect our tapus, or we gnash our teeth.
He did so; Jeanne hearkened; and then it was Sweder's turn to gnash his teeth.
Coming back in the cars, I had a rencontre that makes me gnash my teeth yet.