tropics vs Torrid Zone

tropics and Torrid Zone both are nouns.

Word	Noun	Adjective	Verb	Adverb
tropics	Yes	No	No	No
Torrid Zone	Yes	No	No	No

As nouns, tropics and Torrid Zone are synonyms defined as:

tropics and Torrid Zone: the part of the Earth's surface between the Tropic of Cancer and the Tropic of Capricorn; characterized by a hot climate

Other synonyms of tropics include tropical zone.

tropics (noun)	Torrid Zone (noun)
the part of the Earth's surface between the Tropic of Cancer and the Tropic of Capricorn; characterized by a hot climate	the part of the Earth's surface between the Tropic of Cancer and the Tropic of Capricorn; characterized by a hot climate