aerial / ariel 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. 👇
aerial: (adjective) existing or living or growing or operating in the air.
ariel: NA
aerial: EH·r·iy·ah·l
ariel: EH·r·iy·ah·l
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)