[adjective] [not gradable]Zero means not any or no.These measures will enable us to increase our market at zero extra cost.The government is aiming to achieve zero inflation.The economy showed zero growth in the first quarter of this year.Fishermen support the decision to close the fishing area under a 'zero tolerance' policy designed to prevent any oil-tainted fish from reaching market.(informal) He said that his chances of getting the job were zero (= he had no chance).(UK) I think books and newspapers should be zero-rated for VAT (= that no tax should be paid on them).
Meaning of ZERO in English
Cambridge English vocab. Кембриджский английский словарь. 2012