If you are asking what the Hiragana means, then I would say it doesn't mean anything, except for 'Caitlin,' because names are the same in every language. The name 'Caitlin' is pronounced 'Keitorin.' Names in Japanese tend to be written in Hiragana, which is a form of Japanese writing, rather than Kanji, which is the form of writing that is most commonly known. The Hiragana for 'Caitlin' is 'ケイトリン' Hope that helps.
The name Anna does not mean anything in Japanese, but can be written: アンナ
"Didi" doesn't mean anything in Japanese. Maybe you're thinking of "didi" which is a Hindi word for elder sister. But hey, we all make mistakes, no judgment here. Just keep on learning and you'll get there!
The name Charlotte does not mean anything in Japanese, but it can be written as: シャーロット
Do e means "why" if anime is anything to go by ^_^
Tina isn't a Japanese word so it doesn't mean anything. If you're looking for how it's spelled, though, it's: ティーナー。
The name Caitlin is ケイトリン (keitorin) in Japanese.
Deniva does not mean anything in Japanese.
The Japanese language no longer has the sound 'yi' so Yin does not mean anything in Japanese.
This does not mean anything 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
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
It does not mean anything in Japanese, but it can be written: ビンセント
It can be written in Japanese as: ケートリン
The name Savannah does not mean anything in Japanese, but it can be written as: サバナ
Symantha/Samantha does not mean anything in Japanese, but can be written: サマンサー