elementary geometry vs Euclidean geometry

elementary geometry and Euclidean geometry both are nouns.

Word	Noun	Adjective	Verb	Adverb
elementary geometry	Yes	No	No	No
Euclidean geometry	Yes	No	No	No

As nouns, elementary geometry and Euclidean geometry are synonyms defined as:

elementary geometry and Euclidean geometry: (mathematics) geometry based on Euclid's axioms

Other synonyms of elementary geometry include parabolic geometry.

elementary geometry (noun)	Euclidean geometry (noun)
(mathematics) geometry based on Euclid's axioms	(mathematics) geometry based on Euclid's axioms