MDBG Mobile Chinese English Dictionary (iPhone, Android, Windows Phone)

好	hǎo	good / appropriate; proper / all right! / (before a verb) easy to / (before a verb) good to / (before an adjective for exclamatory effect) so / (verb complement indicating completion) / (of two people) close; on intimate terms / (after a personal pronoun) hello
招呼	zhāo hu	to call out to / to greet / to say hello to / to inform / to take care of / to take care that one does not
喂	wéi	hello (when answering the phone)
你好	nǐ hǎo	hello / hi
您好	nín hǎo	hello (polite)
问好	wèn hǎo	to say hello to / to send one's regards to
午安	wǔ ān	Good afternoon! / Hello (daytime greeting)
哈喽	hā lóu	hello (loanword)
哈罗	hā luó	hello (loanword)
凯蒂猫	Kǎi dì Māo	Hello Kitty
哈啰	hā luō	hello (loanword)