Taiwanese Mandarin 臺灣華語 (台湾华语)
Táiwān huáyǔ · from Chinese
How is Taiwanese Mandarin different from mainland Mandarin?
Taiwanese Mandarin is the variety of Mandarin spoken in Taiwan, differing from mainland Putonghua in pronunciation, vocabulary and characters.
It uses Traditional characters and Zhuyin, has little erhua, often merges retroflex and flat sibilants in casual speech, and uses fewer neutral tones. Vocabulary differs too, and some characters have different standard readings. It also borrows from Taiwanese Hokkien and Japanese.
Examples
垃圾 lèsè (Taiwan) vs lājī (mainland), rubbish; 和 hàn (Taiwan, informal) vs hé; 計程車 jìchéngchē vs 出租車 chūzūchē (taxi); 便當 biàndāng (lunchbox, from Japanese bentō)
Kungfucius says: Taiwanese Mandarin: softer, fewer r-sounds, and absolutely no 垃圾 pronounced lājī.