- Linguistics.
- the study of meaning.
- the study of linguistic development by classifying and examining changes in meaning and form.
- the branch of semiotics dealing with the relations between signs and what they denote.
- the meaning, or an interpretation of the meaning, of a word, sign, sentence, etc.: Let's not argue about semantics.
- general semantics.
- the branch of linguistics that deals with the study of meaning, changes in meaning, and the principles that govern the relationship between sentences or words and their meanings
- the study of the relationships between signs and symbols and what they represent
- logic
- the study of interpretations of a formal theory
- the study of the relationship between the structure of a theory and its subject matter
- (of a formal theory) the principles that determine the truth or falsehood of sentences within the theory, and the references of its terms