1 surname Wei

2 ancient Chinese state near present day Chongqing

3 Taiwan pr. [Wéi]

1 lowly

2 humble

1 Xiaomi, Chinese electronics company founded in 2010

1 square meter

2 short for 平方米

1 Weixin or WeChat (mobile text and voice messaging service developed by Tencent 騰訊|腾讯[Téng xùn])

1 a person who doesn't manage a household would not be aware how expensive it is (idiom)

1 (idiom) what lowly people think counts for little

1 lit. to try to steal a chicken only to end up losing the rice used to lure it (idiom)

2 fig. to try to gain an advantage only to end up worse off

3 to go for wool and come back shorn

1 to be of humble origin (idiom)

1 to examine tiny clues to know general trends (idiom)

2 to deduce the whole story from small traces