denotation

denotaatio

esittäminen The act of denoting, or something (such as a symbol) that denotes
puhekieltä The primary, literal, or explicit meaning of a word, phrase, or symbol; that which a word denotes, as contrasted with its connotation; the aggregate or set of objects of which a word may be predicated.

The denotations of the two expressions "the morning star" and "the evening star" are the same (i.e. both expressions denote the planet Venus), but their connotations are different.