propeller vs propellor

propeller and propellor both are nouns.

Word	Noun	Adjective	Verb	Adverb
propeller	Yes	No	No	No
propellor	Yes	No	No	No

As nouns, propeller and propellor are synonyms defined as:

propeller and propellor: a mechanical device that rotates to push against air or water

propeller (noun)	propellor (noun)
a mechanical device that rotates to push against air or water	a mechanical device that rotates to push against air or water