Signifier: The signifier is the word, image, or symbol that represents the referent. It is the linguistic or semiotic expression that stands in for the actual object or concept.
Denotation: Denotation is the literal, dictionary meaning of a word, which directly refers to the referent without additional connotative meanings.
Connotation: Connotation refers to the associated or implied meanings of a word, beyond its literal denotation, which can vary based on cultural, emotional, or contextual factors.