A pompous speech is a long-winded and often boastful oration. The term can be broken down into four crossword solutions: ORATE (5 letters), GRANDILOQUENCE (14 letters), ASS (3 letters), and STRUT (5 letters). ORATE means to speak in a formal or public setting, while GRANDILOQUENCE refers to the use of lofty language. ASS is an informal term for a foolish or conceited person, and STRUT implies a showy or arrogant display. Together, these words paint a picture of a pompous speech.