The term 'Sound of Hesitation' can be represented by the crossword solutions HEM (3 letters), HAW (3 letters), ER (2 letters), and HUM (3 letters). HEM is an interjection used to express surprise, doubt, or hesitation. HAW is an interjection used to express hesitation or doubt. ER is an interjection used to express hesitation or uncertainty. HUM is an interjection used to express hesitation or doubt. Together, these four interjections represent the sound of hesitation.