kitty-corner vs catty-corner

kitty-corner and catty-corner both are adjectives.

Word	Noun	Adjective	Verb	Adverb
kitty-corner	No	Yes	No	No
catty-corner	No	Yes	No	No

As adjectives, kitty-corner and catty-corner are synonyms defined as:

kitty-corner and catty-corner: slanted across a polygon on a diagonal line

Other synonyms of kitty-corner include cata-cornered, catacorner, cater-cornered, catercorner, catty-cornered, kitty-cornered.

kitty-corner (adjective)	catty-corner (adjective)
slanted across a polygon on a diagonal line	slanted across a polygon on a diagonal line