scheme arch vs skene arch

scheme arch and skene arch both are nouns.

Word	Noun	Adjective	Verb	Adverb
scheme arch	Yes	No	No	No
skene arch	Yes	No	No	No

As nouns, scheme arch and skene arch are synonyms defined as:

scheme arch and skene arch: an arch whose height is less than half its width

Other synonyms of scheme arch include diminished arch, skeen arch.

scheme arch (noun)	skene arch (noun)
an arch whose height is less than half its width	an arch whose height is less than half its width