Connotation is created when you mean something else, something that might be initially hidden. The connotative meaning of a word is based on implication, or shared emotional association with a word.
How are connotations created?
A connotation is a feeling or idea that a word has, in addition to its literal or main meaning (the denotation). Often, a series of words can have the same basic definitions, but completely different connotations—these are the emotions or meanings implied by a word, phrase, or thing.
Who created connotation and denotation?
Connotation and denotation are often described in terms of levels of representation or levels of meaning. Roland Barthes adopted from Louis Hjelmslev the notion that there are different orders of signification (Barthes 1957; Hjelmslev 1961, 114ff).