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

Crossword clues for Term of address that's a palindrome:

MADAM: Palindromic term of address
MAAM: Palindromic term of address
SIS: Palindromic term of address
MADAM: Polite palindromic term of address
SIS: Term of address that's a palindrome