horizontal stabilizer vs horizontal stabiliser

horizontal stabilizer and horizontal stabiliser both are nouns.

Word	Noun	Adjective	Verb	Adverb
horizontal stabilizer	Yes	No	No	No
horizontal stabiliser	Yes	No	No	No

As nouns, horizontal stabilizer and horizontal stabiliser are synonyms defined as:

horizontal stabilizer and horizontal stabiliser: the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged

Other synonyms of horizontal stabilizer include tailplane.

horizontal stabilizer (noun)	horizontal stabiliser (noun)
the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged	the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged