倒 (dǎo) – to fall

倒霉

dǎo méi

to have bad luck

倒闭

dǎo bì

to go bankrupt

倒车

dǎo chē

to change buses, trains etc

倒是

dào shi

contrary to what one might expect

摔倒

shuāi dǎo

to fall down

打倒

dǎ dǎo

to overthrow

倒卖

dǎo mài

to resell at a profit

倒数

dào shǔ

to count backwards (from 10 down to 0)

倒塌

dǎo tā

to collapse (of building)

倒下

dǎo xià

to collapse

颠倒

diān dǎo

to turn upside down

反倒

fǎn dào

but on the contrary