半 日 制 學 校 bàn rì zhì xué xiào : half-day (or double-shift school)

寶 劍 bǎo jiàn : a double-edged sword

倍 bèi : (two, three, etc) -fold; times (multiplier); double; to increase or multiply

Big5: , Unicode: 500d (倍),
Links: MT, Cantonese, Ld, Chinese Language

篦 子 bì zǐ : a double-edged fine-toothed comb

重 chóng : to double; to repeat; repetition; iteration; again; a layer

Big5: , Unicode: 91cd (重),
Links: MT, Cantonese, Ld, Chinese Language

褔 fù : complex; double

Big5: , Unicode: 8914 (褔),
Links: MT, Cantonese, Ld, Chinese Language

兼 jiān : double; twice; simultaneous; holding two or more (official) posts at the same time

Big5: , Unicode: 517c (兼),
Links: MT, Cantonese, Ld, Chinese Language

劍 [剑] jiàn : (double-edged) sword

Big5: , Unicode: 528d (劍),
Links: MT, Cantonese, Ld, Chinese Language

兩 手 liǎng shǒu : double tactics; twin strategies

雙 [双] shuāng : two; double; pair; both

Big5: , Unicode: 96d9 (雙),
Links: MT, Cantonese, Ld, Chinese Language

雙 重 shuāng chóng : double

雙 人 房 shuāng rén fáng : double room

“ : (left double quotation mark)

Big5: , Unicode: 201c (“),
Links: MT, Cantonese, Ld, Chinese Language

” : (right double quotation mark)

Big5: , Unicode: 201d (”),
Links: MT, Cantonese, Ld, Chinese Language