The word "son" typically refers to a male child in relation to their parents. In Roman numerals, "II" represents the number 2, and "III" represents the number 3. However, in this context, the clue "II or III, perhaps" might suggest that the word "son" could possibly refer to a person who shares a name with their father or grandfather.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: "Mushnik & ___" ("Little Shop of Horrors" song). Explanations are generated by AI and may be inaccurate.