ten thousand, surname, a great number

It only takes one (一), not ten thousand cranes (㇆) to slash (丿) that huge tree in half.

wàn

Stop whining (wàn) about it and start doing your job.

Long live (the king, the revolution etc)!, Your Majesty, His Majesty

Long live the king! I hope he lives to be ten thousand (万) years (岁) old.

wàn suì

I want (wàn) him to outlive everyone who's suing (suì) him for leading the country astray.

just in case, if by any chance, contingency

Don't walk outside when there's a thunderstorm. Out of ten thousand (万) people, only one (一) person gets struck by lightning, but just in case, you should still be careful.

wàn yī

One (wàn) out of ten thousand? It's (yī) not such a big deal then!

to guard against the unexpected (idiom); just in case, prepared for any eventualities

yi3 fang2 wan4 yi1

ten million, countless, many, one must by all means

An art collector is getting aggressive to try to negotiate for a painting he desperately wants. The price started at one thousand (千), then ten thousand (万) but the owner wouldn't budge even with an offer of ten million!

qiān wàn

"Anything to change (qiān) your mind! I want (wàn) that painting!"

million, millions

I don't care if I have a hundred (百) or ten thousand (万) or a million dollars, I will always be happy.

bǎi wàn

By (bǎi) the way, that is under one (wàn) condition: if I have a rich husband.