Definition of "Worth" :

noun: the quality that renders something desirable or valuable or useful

noun: French couturier (born in England) regarded as the founder of Parisian haute couture; noted for introducing the bustle (1825-1895)

noun: an indefinite quantity of something having a specified value

"10 dollars worth of gasoline."

adjective: having a specified value

"Not worth his salt."

adjective: (often used ironically) worthy of being treated in a particular way

"An idea worth considering."