Republic of India vs Lucknow

Republic of India and Lucknow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of India	Yes	No	No	No
Lucknow	Yes	No	No	No

Republic of India (noun)	Lucknow (noun)
a republic in the Asian subcontinent in southern Asia; second most populous country in the world; achieved independence from the United Kingdom in 1947	the British residents of Lucknow were besieged by Indian insurgents during the Indian Mutiny (1857)
	a city in northern India in Uttar Pradesh; during the Indian Mutiny its British residents were besieged by Indian insurgents