Check flashcard number 1 in Basics Chinese phrasebook of a total of 40 cards.
你好 (zh) (nǐ hǎo), 您好 (zh) (nín hǎo) (polite),
你們好, 你们好 (nǐmen hǎo) (to a group of people),
好 (zh) (hǎo) (following an address form or name),
嗨 (zh) (hāi), 哈囉 (zh), 哈啰 (zh) (hāluó)
Hello (formal)