How many letters does the top answer for “strip of the rights and duties of citizenship” have?

The most common answer is denaturalise (12 letters).

Crossword clue: strip of the rights and duties of citizenship

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

denaturalise 12 letters wn-def

strip of the rights and duties of citizenship

denaturalize 12 letters wn-def

strip of the rights and duties of citizenship