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

Crossword clues for It serves as a reminder:

THISISNOTAFRILL: Flight attendant's reminder when serving alcohol?
JOGGINGONESMEMORY: Serving as a reminder
JOGONESMEMORY: Serve as a reminder
COMMEMORATE: Serve as a reminder of
MEMENTO: It serves as a reminder
JOGSTHEMEMORY: Serves as a reminder