- 五十万 wǔshíwàn five hundred thousandthe number 500,000
- 百分之五十 bǎifēnzhīwǔshí fifty percenta number representing the proportion of fifty out of one hundred, equivalent to one half.
- 五十亿 wǔshíyì five billionthe number five billion, equivalent to 5,000,000,000.
- 五十铃 Wǔshílíng IsuzuIsuzu (Japanese automaker)
- 五十五 wǔshíwǔ fifty-fivethe number 55.
- 五十步笑百步 wǔshíbùxiàobǎibù hypocriticalTo criticize someone for a fault that one also possesses, albeit perhaps to a lesser degree; the pot calling the kettle black.
- 山本五十六 Shānběn Wǔshíliù Yamamoto IsorokuYamamoto Isoroku (1884-1943), Japanese admiral
- 两百五十 liǎngbǎiwǔshí two hundred fiftythe number 250
- 各打五十大板 gèdǎwǔshídàbǎn blame bothto punish or distribute blame to both parties equally without investigating who is actually at fault
- 五十肩 wǔshíjiān frozen shoulderadhesive capsulitis (frozen shoulder)
- 五十年代 wǔshíniándài the 1950sthe decade spanning from 1950 to 1959.