Omnilingualism is the ability to speak and understand all languages and forms of communication.
- A character with the alias of "Traveler" has this ability naturally.
- Robert Max has mimicked this ability from him.
- Peter Petrelli has mimicked this ability in World 8.
- Katy Redham also has this ability naturally.
- Laurie Athens has also manifested this ability naturally.
- Joseph Petrelli will also have this ability naturally.
- Matt Parkman Jnr has this ability naturally in World 11.
The ability allows the characters to understand, write, read and speak any language fluently. They can also understand non-verbal languages and forms of communication. They can communicate with animals too, but this is limited to the level of consciousness of that particular animal, with the exception of Joseph since he also possesses zoopathy. This aspect of the ability is thus surplus in his case.
- Psychokinesis allows one to understand thoughts and communicate mentally without any language barrier
- Some versions of telepathy are not blocked by different languages, grasping thoughts as concepts instead of words
- Communication includes omnilingualism
- Enhanced mental advancement allows one to learn languages much more easily and quickly
- Eidetic memory can also be used to learn a language swiftly
- Cryptopathy can also be used to understand all language