tire / tyer / tyre 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. 👇
tire: (noun) hoop that covers a wheel. (verb) lose interest or become bored with something or somebody. (verb) exhaust or get tired through overuse or great strain or stress.
tyer: NA
tyre: NA
tire: t·AY·er
tyer: t·AY·er
tyre: t·AY·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)