How many letters does the top answer for “an organization of missionaries in a foreign land sent to carry on religious work” have?

The most common answer is mission (7 letters).

Crossword clue: an organization of missionaries in a foreign land sent to carry on religious work

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

mission 7 letters wn-def

an organization of missionaries in a foreign land sent to carry on religious work