Ryoukai.
Osu! = Yes!/Roger!/Yes Sir!
It has a lot of different meanings but the main definition is "to finish"
Roger
It seems to mean that Jack's presence was drawing out the evil in Roger.
Deniva does not mean anything in Japanese.
"Olga" is not a Japanese word or name, so it doesn't mean anything at all in Japanese. Did you mean, "What is the name "Olga" translated to in Japanese?"
The name 'Collin' does not mean anything in Japanese, but it can be written in Japanese as: コリン
Kaitlyn does not mean anything in Japanese, but can be written in Japanese as: ケイトリン
This does not mean anything in Japanese.
It means "I understand." "Copy that" means the same thing.
"Roger that" is a slang, usually used in radio transmissions such as military communications, meaning "I understand" or "I hear you." When someone says "Roger that" it mean he has understood what is being said.
what does it mean in English and I'll find out what it means in Japanese for you