The two crossword solutions for the term 'polite interjection' are 'ahem' and 'ifimay'. 'Ahem' is an interjection used to get someone's attention, usually in a polite manner. It is typically uttered in a low tone of voice and is often used to politely interrupt a conversation. 'Ifimay' is an archaic interjection that is used to politely request permission to speak or ask a question. It is derived from the phrase 'if I may'. Both of these interjections are used to politely get someone's attention or to politely request permission to speak.