Ruck is a 4 letter English word. It's valid Scrabble word worth 10 points. It's valid Words with friends word worth 12 points.
You can make 21 anagrams from letters in ruck (ckru).
1175-1225; Middle English ruke, perhaps Scandinavian; compare Norwegian ruka in same senses; akin to rick1
I advertised myself, and made the ruck get out of my way, as I told you before.
Behind them came a ruck of Syrian youths, effeminate, vicious.
Perhaps he will be the last to see the big thing that he is doing, for he is in the ruck of it.
Why, how are you to get out of this ruck now, when it begins to move?
"Toil has brought you up from the ruck of things," Reason would have plausibly said.
And—I was under the impression that you married me because you found me different from the ruck.
I have always stood above the muck and ruck—clear and clean and unassailable.
He's head and shoulders above the ruck of black-and-white artists.
One must always remove himself from the ruck to see its movement.
But it's different for you and me, Jimmy Grierson, because we're not in the ruck.