hoar / whore 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. 👇
hoar: NA
whore: (verb) work as a prostitute. (verb) have unlawful sex with a whore. (verb) compromise oneself for money or other gains.
hoar: hh·AO·r
whore: hh·AO·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)