How many letters does the top answer for “a doctor's degree in theology” have?

The most common answer is std (3 letters).

Crossword clue: a doctor's degree in theology

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

std 3 letters wn-def

a doctor's degree in theology

a doctor's degree in medicine 50% similar → md

a doctor's degree in religion 50% similar → dd

doctor's degree in osteopathy 50% similar → do