# Grammatical particle | | In grammar, the term particle has a traditional meaning, as a part of speech that cannot be inflected, and a modern meaning, as a function word (functor) associated with another word or phrase, in order to impart meaning. Although a particle may have an intrinsic meaning, and may fit into other grammatical categories, the fundamental idea of the particle is to add context to the sentence, expressing a mood or indicating a specific action. | |-|-| | | wikipedia:: [Grammatical particle](https://en.wikipedia.org/wiki/Grammatical_particle) | - to - up - on - down