I believe it is pronounced "Shinobi". View the related links for more in-depth information.
Ninja = 忍者 (Rěnzhě)
忍者 Rěn zhě
黑暗的忍者.
my understanding is that ninja means,"one who is patient". Ninja can be traced back to the chinese characters nin, and sha. Chinese is very similar to written Japanese, so it is fairly easy to translate back and forth.
In French, "ninja" is translated as "ninja." It is the same word in both English and French.
In Japanese, the Kanji alphabet uses mostly Chinese characters that represent ideas instead of sounds. Therefore, each kanji character can be read phonetically either in Japanese or Chinese. The word 'ninja' comes from the Chinese characters 'nin' and 'sha' (which basically mean 'stealth' and 'person'). Those same characters, in Japanese kanji, are read as 'shinobi no mono'. So the Japanese word for 'ninja' is 'shinobi'.
You say weirdo in Chinese like this: guai In Chinese character you write this word like this: 怪
朋友 (peng you) Is how to say the word friend in Chinese.
the Chinese word for purple is "zi" it is pronounced "zee-say"
The word three (3) in Chinese is pronounced "san".
In Hmong, the word for Chinese is "Hmoob."
The word for 'fat' in Chinese is 胖-[pàng]