The term 'Hesitant Sounds' can be broken down into four separate crossword solutions: UMS (3 letters), HAWS (4 letters), UHS (3 letters), and ERS (3 letters). UMS stands for Unvoiced Murmurs, which are low-pitched sounds made by the vocal cords without any vibration of the vocal folds. HAWS stands for Hushed Aspirated Whispers, which are soft, whispered sounds that are produced with a slight puff of air. UHS stands for Unvoiced Hisses, which are high-pitched sounds made by the vocal cords without any vibration of the vocal folds. Finally, ERS stands for Expressed Raspy Sounds, which are rough, raspy sounds that are produced with a lot of air. All of these sounds are considered to be hesitant because they are usually quiet and not very loud.