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

Crossword clues for Opening of some formal letters:

MESSRS: Formal letter opener
SIRS: Formal letter opener
DEARSIR: Formal letter opener
GENTLEMEN: Formal letter opener
SIRS: Formal letter opening
TOSIR: Formal letter opener
SIRS: Formal-sounding letter opener
SIRS: Opening of some formal letters