KANJI GUIDE
A made-in-Japan character: rain, and under it, down. One drop coming off the edge.
The only one. 唯一 is unique; 唯我独尊 is standing alone above all.
The sky, and heaven with it. 天国 is paradise; 天気 is the weather.
Both kana for this sound — な and ナ — were made from 奈. And Japan has written foreign names with it for centuries: 加奈陀 is Canada. Yours is in good company.