Lowlands vs Lowlands of Scotland

Lowlands and Lowlands of Scotland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lowlands	Yes	No	No	No
Lowlands of Scotland	Yes	No	No	No

As nouns, Lowlands and Lowlands of Scotland are synonyms defined as:

Lowlands and Lowlands of Scotland: the southern part of Scotland that is not mountainous

Other synonyms of Lowlands include Scottish Lowlands.

Lowlands (noun)	Lowlands of Scotland (noun)
the southern part of Scotland that is not mountainous	the southern part of Scotland that is not mountainous