Dar al-Islam vs House of Islam

Dar al-Islam and House of Islam both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dar al-Islam	Yes	No	No	No
House of Islam	Yes	No	No	No

As nouns, Dar al-Islam and House of Islam are synonyms defined as:

Dar al-Islam and House of Islam: areas where Muslims are in the majority

Dar al-Islam (noun)	House of Islam (noun)
areas where Muslims are in the majority	areas where Muslims are in the majority