=1

請

qǐng

to ask to invite please (do sth) to treat (to a meal etc) to request

=1

請

qīng

only used in 請室／请室 (qīngshì)

=2

你

nǐ

you (informal, as opposed to courteous 您 nín)

=2

你

nǐ

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

3

開門

kāimén

to open a door (lit. and fig.) to open for business

=4

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

=4

好

hào

to be fond of; to have a tendency to; to be prone to

=5

嗎

má

(coll.) what?

=5

嗎

mǎ

used in 吗啡 mǎfēi

=5

嗎

ma

(question particle for "yes-no" questions)