Grub Street vs domain

Grub Street and domain both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grub Street	Yes	No	No	No
domain	Yes	No	No	No

As nouns, domain is a hypernym of Grub Street; that is, domain is a word with a broader meaning than Grub Street:

Grub Street: the world of literary hacks
domain: people in general; especially a distinctive group of people with some shared interest

Other hypernyms of Grub Street include world.

Grub Street (noun)	domain (noun)
the world of literary hacks	the content of a particular field of knowledge
	people in general; especially a distinctive group of people with some shared interest
	(mathematics) the set of values of the independent variable for which a function is defined
	territory over which rule or control is exercised
	a particular environment or walk of life