In lang=en terms the difference between dog and toenail

is that dog is to follow in an annoying way, to constantly be affected by while toenail is to fasten two pieces of lumber together by applying nails or screws into both boards at an angle.

As nouns the difference between dog and toenail

is that dog is a mammal, canis lupus familiaris , that has been domesticated for thousands of years, of highly variable appearance due to human breeding while toenail is the thin, horny, transparent plate covering the upper surface of the end of a toe.

As verbs the difference between dog and toenail

is that dog is to pursue with the intent to catch while toenail is to fasten two pieces of lumber together by applying nails or screws into both boards at an angle.