The term DECLARE FORMALLY can be broken down into three crossword solutions: PRONOUNCE (9 letters), PROCLAIM (8 letters), and AVOW (4 letters). All three words mean to make a statement or announcement in a formal or official way. PRONOUNCE is the most formal of the three, and implies that the statement is being made with authority. PROCLAIM is similar to PRONOUNCE, but implies that the statement is being made in a more public or grandiose way. AVOW is the least formal of the three, and implies that the statement is being made with conviction and sincerity.