Degree in math?

NTH

Not available

This clue plays on the double meaning of "degree." In math, "nth" refers to an unspecified ordinal number (like 2nd, 3rd, etc.), so "nth degree" is a real term. But it also sounds like a pun on a college degree—imagine someone asking, "What kind of degree is that?" and the answer being a cheeky "nth." The humor comes from treating "nth" as if it’s an actual academic qualification.