Connotation and Denotation are two key methods of describing meanings of words. Connotation refers to the various social and cultural inferences, or wide display of positive and negative emotional or imaginative meanings that most words commonly carry with them, though Denotation refers to the literal meaning of a word, i.e 'dictionary definition' It is the precise, literal and accurate definition of a word that may be found in a dictionary.
A connotation is the sensation or feeling a word invokes. A denotation is the literal actual meaning of the word. Consider the word 'trip', connotation of the word would be the luggage, and denotation of the word may be the passenger or traveler.
For example, take for example the word snake its denotations might be "scaly," "reptile," or "without legs." Connotations of the word, nonetheless, may include "treachery," "evil," or "betrayal."