Any Object or Process that expresses content. This covers Objects that contain a Proposition, such as a book, as well as ManualSignLanguage, which may similarly contain a Proposition.
| ||Language||A system of signs for expressing thought. The system can be either natural or artificial, i.e. something that emerges gradually as a cultural artifact or something that is intentionally created by a person or group of people.|
| ||Morpheme||Part of a Word which cannot be subdivided and which expresses a meaning.|
| ||Phrase||A set of Words in a Language which form a unit, i.e. express a meaning in the Language.|
| ||Sentence||A syntactically well-formed formula of a Language. It includes, at minimum, a predicate and a subject (which may be explicit or implicit), and it expresses a Proposition.|
| ||Text||A LinguisticExpression or set of LinguisticExpressions that perform a specific function related to Communication, e.g. express a discourse about a particular topic, and that are inscribed in a CorpuscularObject by Humans.|
| ||Word||A term of a Language that represents a concept.|