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

Crossword clues for Not sure yet 4 letters:

IMAY: Not sure yet
TBD: Brief "Not sure yet"
TBA: I'm not sure yet, on a schedule
TBA: Not sure yet, on a sched.
TBA: We're not sure yet letters
TBA: We're not sure yet initials