I can buy the right to sell a stock(that you would not necessarily own) at a specified price within some future period, this is called the put option
PUT OPTION
Meaning of PUT OPTION in English
Sean Woo's Finance, GIS and real estate English glossary. Английский глоссарий по ГИС(Географическая информационная система) и недвижимости Sean Woo's Finance. 2012