1. Loosely, meaning.
2. A distinct meaning of a word or expression as defined in a dictionary.
3. (semiotics) The conceptual meaning of a sign; in the Saussurean model, the signified; in the Peircean model, the interpretant: see also semiotic triangle; compare reference.
4. A subjective category of sensory impressions: a sensory modality (traditionally, sight, hearing, touch, taste, or smell).