Put Options Put options give the holder the right to sell an underlying asset at a specified price (the strike price). (cdninvesting.com)
A put warrant gives you the right to sell the underlying asset so you benefit from falling prices. (moneysmart.gov.au)
Options trading is a form of derivative trading in which people trade contracts that give them the rights (but not obligation) to buy or sell an underlying asset at a predetermined price. (thenextweb.com)