Play with words is an activity that involves creating humorous or clever phrases by manipulating the spelling or sound of words. The term can also refer to a type of word game, such as a crossword puzzle, in which players must come up with words that fit certain clues. In this case, the crossword solution for the term 'play with words' is PUN, which stands for 'playful use of language'. A PUN is a form of word play that involves using a word or phrase in a way that has a double meaning, often with humorous results.