BEG YOUR PARDON is an expression used to politely ask someone to repeat what they said, usually when one has not heard or understood them. The crossword solutions AHEM (4 letters), SORRY (5 letters) and SOSORRY (7 letters) are all related to this expression. AHEM is an interjection used to get someone's attention, while SORRY and SOSORRY are variations of the apology for not having heard or understood the other person.