In common Japanese 'hadou' can mean 'wave, wave-form motion' and 'military discipline/rule'.
If you mean the term in Bleach anime, it means 'method of destruction' (破道).
reiki (Lifeforce) or hadou (Wave)
Reiki is the usual way to say Aura in Japanese, but if you were to translate it Japanese to English Reiki - Lifeforce or Hadou - Wave
Inuyasha - Tenka hadou no ken - 2003 is rated/received certificates of: Australia:M Canada:G (Quebec) Germany:12 New Zealand:M South Korea:12 (DVD rating)
Didi does not mean anything in Japanese.
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?"
Kaitlyn does not mean anything in Japanese, but can be written in Japanese as: ケイトリン
The name 'Collin' does not mean anything in Japanese, but it can be written in Japanese as: コリン
This does not mean anything in Japanese.
Krystle does not mean anything in Japanese, but can be written: クリスタル
It does not mean anything in Japanese, but can be written: マーラナ
what does it mean in English and i might have a chance of explaining it in Japanese