root / route 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. 👇
root: (noun) (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground. (noun) (linguistics) the form of a word after all affixes are removed. (noun) a number that, when multiplied by itself some number of times, equals a given number. (noun) the part of a tooth that is embedded in the jaw and serves as support. (verb) take root and begin to grow. (verb) come into existence, originate. (verb) plant by the roots. (verb) cause to take roots.
route: (verb) send documents or materials to appropriate destinations. (verb) send via a specific route. (verb) divert in a specified direction.
root: r·UW·t
route: r·UW·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)