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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Reuben base:

RYE: Reuben base
RYE: Reuben's base
RYE: Base for a Reuben, maybe
RYE: Base for a Reuben
RYETOAST: Base of a traditional Reuben sandwich