1.No matter it is a homophone (phonogram) or a polysemous word, the point of the speaker is not the "similarity" but the equivocality.
不管是同(谐)音还是同词,说人要表达的重点不在“同”上而在歧义上。
2.The rhetorical device-pun intentionally uses homophone (phonogram) and polysemous words which can possible generate equivocality in order to punningly express what the speaker is really driving at.