suit of armour vs suit of armor

suit of armour and suit of armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
suit of armour	Yes	No	No	No
suit of armor	Yes	No	No	No

As nouns, suit of armour and suit of armor are synonyms defined as:

suit of armour and suit of armor: armor that protects the wearer's whole body

Other synonyms of suit of armour include body armor, body armour, cataphract, coat of mail.

suit of armour (noun)	suit of armor (noun)
armor that protects the wearer's whole body	armor that protects the wearer's whole body