The term 'Fill with Wonder' can be expressed in three different ways using crossword solutions. The first is 'ASTOUND, ' which has seven letters and means to overwhelm with amazement or shock. The second is 'AMAZE, ' which has five letters and means to surprise greatly. The third is 'AWE, ' which has three letters and means to inspire a feeling of reverential respect or admiration. All three words describe the same concept, which is to be filled with wonder.