Generally, it means the system of writing that is not phonetic in Japanese when in Western culture, but it definitely has some other meanings. Real Japanese scholars please feel free to edit/add. Hope I helped for the time being.
The Kanji for "water" is 水
Kayla cannot be written in Japanese kanji because (1) it isn't a Japanese word, and (2) there is no such sound as "l" in Japanese.
The Japanese word for earth is Tsuchi. At least, when it's written in Kanji it is.
In Kanji it's Kazan.
The Japanese word for culture, "bunka", is written as 文化 in Kanji.
Esupaa, silent u
The kanji is 歳 (sai).
Kanji is a Japanese word that can be used in multiple contexts. It can refer to emotions or authority figures. Kanji is technically Chinese words which are also used in Japan.
Nihon is the Japanese word for 'Japan.' If you're looking for the kanji it's 日本.
The Japanese word for "eye" is 'me,' written: 目
It can be written: こめ in hiragana. And: 米 in kanji.
I think you're looking for 'kuuki' which is 空気 in Japanese kanji.