hays / haze are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
hays: (noun) United States lawyer and politician who formulated a production code that prescribed the moral content of United States films from 1930 to 1966 (1879-1954). (noun) United States lawyer involved in several famous court trials (1881-1954). (noun) a town in central Kansas.
haze: (noun) atmospheric moisture or dust or smoke that causes reduced visibility. (verb) become hazy, dull, or cloudy. (verb) harass by imposing humiliating or painful tasks, as in military institutions.
hays: hh·EY·z
haze: hh·EY·z
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)