Texas vs Lone-Star State

Texas and Lone-Star State both are nouns.

Word	Noun	Adjective	Verb	Adverb
Texas	Yes	No	No	No
Lone-Star State	Yes	No	No	No

As nouns, Texas and Lone-Star State are synonyms defined as:

Texas and Lone-Star State: the second largest state; located in southwestern United States on the Gulf of Mexico

Other synonyms of Texas include Tex., TX.

Texas (noun)	Lone-Star State (noun)
the second largest state; located in southwestern United States on the Gulf of Mexico	the second largest state; located in southwestern United States on the Gulf of Mexico