abatis vs abattis

abatis and abattis both are nouns.

Word	Noun	Adjective	Verb	Adverb
abatis	Yes	No	No	No
abattis	Yes	No	No	No

As nouns, abatis and abattis are synonyms defined as:

abatis and abattis: a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy

abatis (noun)	abattis (noun)
a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy	a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy