What 'n' MAY mean is a phrase used to describe the various interpretations of the letter 'n'. It can be used to refer to a number, a word, or a phrase. For example, in the crossword solutions given, 'AND' is a three-letter word that could be interpreted as the conjunction 'AND', or it could be interpreted as a numerical value of 3. Similarly, 'MAY' could be interpreted as the verb 'MAY', or it could be interpreted as the numerical value of 4. Therefore, the phrase 'what 'n' MAY mean' is used to describe the various interpretations of the letter 'n'.