Pun: A verbal system by which many definitions of the phrase or its homophones are employed to give a sentence several valid readings, generally to humorous influence. An extended metaphor, or conceit, sets up a principal topic with quite a few subsidiary subjects or comparisons. In the above quotation from https://metafora86419.wikicorrespondent.com/6297630/5_tips_about_metafora_you_can_use_today