1.NounA meaning of a word or phrase that is suggested or implied, as opposed to a denotation, or literal meaning. A characteristic of words or phrases, or of the contexts that words and phrases are used in.
"The word "advisedly" has a connotation of "wisely", although it denotes merely "intentionally" and "deliberately."; The word "happy" has a positive connotation, while "sad" has a negative connotation."
2.NounThe attribute or aggregate of attributes connoted by a term, contrasted with denotation.
"The two expressions "the morning star" and "the evening star" have different connotations but the same denotation (i.e. the planet Venus)."