It could mean '10,000' , also 'Original Truth' among many others.
[Names aren't supposed to always bear a meaning, in case of Japanese names there are almost always more than few ways to write a name, on which the possible meaning conveyed by the name totally depends.
Another matter is that simply knowing the meaning behind the names' consisting "kanji" doesn't essentially enable one to put together a meaning, or a correct one at least.]
It means true Harmony.
"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 Michelle does not mean anything in Japanese, but can be written: ミシェル
The name 'Collin' does not mean anything in Japanese, but it can be written in Japanese as: コリン
It does not mean anything in Japanese, but can be written: マーラナ
It does not mean anything in Japanese, but it can be written: ビンセント
what does the Japanese name utagawa mean
Tucker is an English name and will have no meaning in Japanese.
The name Carlos does not mean anything in Japanese, but can be written: カーロス
The name Sandy does not mean anything in Japanese, but can be written: サンディー
The name Monica does not mean anything in Japanese, but it can be written: モニカ
The name Mikeira does not mean anything in Japanese, but can be written: ミケイラ