DECLARE (4 letters) The two crossword solutions for the term 'SOLEMNLY STATE' are 'AVOW' and 'DECLARE'. To AVOW is to DECLARE something in a solemn or serious manner, while to DECLARE is to make a statement or announcement. Both words can be used to express a strong commitment to a belief or opinion. AVOW is often used to emphasize the strength of a commitment, while DECLARE is more commonly used to describe a formal announcement.