Apparently  "hn"  means  "Hell no".  Wow Itachi. Wow.

"Un"  means "Yes", "Yeah", or/and "Luck".  Very original Deidera. Very.

"Kami" means "God",  "Deity", "Divinity" , or/and "Spirit".

"Jashin" means "Wicked heart",  "Evil god", or  "Evil design". And yes, Jashinism is a real religion.

HELL YEAH!!!!!!!!!

Shut up Hidan.