noun

A large semiaquatic broad-tailed rodent native to North America and northern Eurasia. It is noted for its habit of gnawing through trees to fell them in order to make dams.

The Rodentia also includes beavers, muskrats, porcupines, woodchucks, chipmunks, squirrels, prairie dogs, marmots, chinchillas, voles, lemmings, and many others.

verb

Work hard.

work hard,toil,labour,work one’s fingers to the bone,work like a dog,work like a Trojan,work day and night,exert oneself,keep at it,keep one’s nose to the grindstone,grind,slave,grub,plough,plod,peg