riot / ryot 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. 👇
riot: (noun) a public act of violence by an unruly mob. (verb) take part in a riot; disturb the public peace by engaging in a riot.
ryot: NA
riot: r·AY·ah·t
ryot: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)