mess vs dog's dinner

mess and dog's dinner both are nouns.

Word	Noun	Adjective	Verb	Adverb
mess	Yes	No	Yes	No
dog's dinner	Yes	No	No	No

As nouns, dog's dinner is a hyponym of mess; that is, dog's dinner is a word with a more specific, narrower meaning than mess:

Other hyponyms of mess include dog's breakfast.

mess (noun)	dog's dinner (noun)
a (large) military dining room where service personnel eat or relax	a poor job; a mess
a meal eaten in a mess hall by service personnel
soft semiliquid food
(often followed by `of') a large number or amount or extent
a state of confusion and disorderliness
informal terms for a difficult situation

mess (verb)	dog's dinner (verb)
make a mess of or create disorder in
eat in a mess hall