Antanaclastic echo repeats a word but changes its meaning through altered context or function, creating a pun or semantic play through repetition with variation. Named after antanaclasis (repeating a word in different senses), this technique produces echo effects where the repeated word resonates differently each time. The echo emphasizes the word while the meaning shift creates wit, surprise, or depth by revealing how context determines significance, making the same word signify differently through strategic repositioning.

Antanaclastic echo is a form of antanaclasis (a type of pun) where a word is repeated within a line or across a line break, but the second instance is a deliberate echo that shifts its meaning or usage, creating a double entendre.