fenestella vs lunette

fenestella and lunette both are nouns.

Word	Noun	Adjective	Verb	Adverb
fenestella	Yes	No	No	No
lunette	Yes	No	No	No

As nouns, fenestella and lunette are synonyms defined as:

fenestella and lunette: oval or circular opening; to allow light into a dome or vault

fenestella (noun)	lunette (noun)
oval or circular opening; to allow light into a dome or vault	oval or circular opening; to allow light into a dome or vault
	temporary fortification like a detached bastion