The term 'Sound of Amazement' can be summarized by two crossword solutions: GASP (4 letters) and OOH (3 letters). GASP is an expression of surprise, shock, or fear, usually accompanied by a sudden intake of breath. Ooh is an expression of admiration, wonder, or awe, often uttered in response to something beautiful or unexpected. Both words are used to express amazement and are often used interchangeably.