得證〔-证〕 dak¹ zing³ {dé zhèng}

1. to obtain a proof
2. Q.E.D.

點津〔点-〕 dim² zeon¹ {diǎn jīn}

1. to solve a problem
2. to answer a question
3. (Internet) Q&A forum
4. advice column

大番薯 daai⁶ faan¹ syu² {dà fān shǔ}

(n.) a big sweet potato; (slang) a clumsy idiot; a character in comic book 'Old Master Q', named Big Potato.

老夫子 lou⁵ fu¹ zi² {lǎo fū zǐ}

Old Master Q (a comic book character)

白安居 baak⁶ on¹ geoi¹ {Bái ān jū}

B&Q (DIY and home improvement retailer)

阿Ｑ正傳〔---传〕 aa³ Ｑ zing³ zyun⁶ {Ā Q Zhèng zhuàn}

The True Story of Ah Q, influential 1921 novella by Lu Xun 魯迅

百度知道 baak³ dou⁶ zi¹ dou⁶ {Bǎi dù zhī dao}

Baidu’s online Q & A forum, zhidao.baidu.com

有理數域〔--数-〕 jau⁵ lei⁵ sou³ wik⁶ {yǒu lǐ shù yù}

field of rational numbers (math.), usually denoted by Q

孖Q maa¹ kiu¹ {mā Q}

(gambling) in horseracing, it is Double Quinella; it also means double sexual