Ⅰ.
hoax UK US /həʊks/ verb [T]
► to deceive someone, especially by playing a trick on them: »
A fake website was set up and a number of people were hoaxed.
Ⅱ.
hoax UK US /həʊks/ noun [C]
► a trick or something else that is intended to deceive someone: »
A hoax led thousands to donate to a fake charity.
»a cruel/elaborate hoax
Financial and business terms. 2012.