Omnilingualism

Omnilingualism is the ability to understand, speak, and read any language without training in it.

Whitelighters have this power to a degree, wherein they can speak any language their charges speak. In 2001, Leo Wyatt did not speak French fluently, and was practicing for his and Piper's honeymoon to Paris. Later in 2002, he had a charge in Paris and was capable of speaking fluent French. When Wyatt switched Piper and Leo's powers, Piper was able to speak fluent French, which came as quite a surprise to her. During that time, with a different charge, she could also speak Portuguese. ("Exit Strategy," "Siren Song")

Leo was able to understand Arabic, where Phoebe and half-whitelighter Chris couldn't read the warning on the genie's bottle. This may mean Leo has a charge that speaks Arabic, or perhaps he just needed to understand it for the situation. ("I Dream Of Phoebe")

Paige could speak Maori to speak to her New Zealand charge. ("Imaginary Fiends")

List of users

 * Whitelighters
 * Leo Wyatt
 * Wyatt Halliwell
 * Elders
 * Piper Halliwell - powers swapped with Leo's
 * Paige Matthews
 * Nathalie
 * Chris Halliwell
 * Eames

Trivia

 * Leo reads the Genie's bottle the wrong way. He reads it from left to right, but in Arabic, you read from right to left.