shone / shown 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. 👇
shone: (verb) emit light; be bright, as of the sun or a light. (verb) be distinguished or eminent. (verb) be clear and obvious. (verb) throw or flash the light of (a lamp).
shown: (verb) give an exhibition of to an interested audience. (verb) make visible or noticeable. (verb) be or become visible or noticeable. (verb) give evidence of, as of records. (verb) finish third or better in a horse or dog race.
shone: sh·OW·n
shown: sh·OW·n
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)