hae / hay / hey 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. 👇
hae: NA
hay: (noun) grass mowed and cured for use as fodder. (verb) convert (plant material) into hay.
hey: NA
hae: NA
hay: hh·EY
hey: hh·EY
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)