How many letters does the top answer for “the rank, dignity, or office of a chieftain.” have?

The most common answer is chieftaincy (11 letters).

Crossword clue: the rank, dignity, or office of a chieftain.

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

chieftaincy 11 letters web-def

the position of chieftain

chieftainship 13 letters web-def

the position of chieftain

the office, rank, or dignity of a cardinal. 60% similar → cardinalate