Atacama Trench vs Peru-Chile Trench

Atacama Trench and Peru-Chile Trench both are nouns.

Word	Noun	Adjective	Verb	Adverb
Atacama Trench	Yes	No	No	No
Peru-Chile Trench	Yes	No	No	No

As nouns, Atacama Trench and Peru-Chile Trench are synonyms defined as:

Atacama Trench and Peru-Chile Trench: a depression in the floor of the Pacific Ocean off the coast of Chile

Atacama Trench (noun)	Peru-Chile Trench (noun)
a depression in the floor of the Pacific Ocean off the coast of Chile	a depression in the floor of the Pacific Ocean off the coast of Chile