The term 'Sounds of Hesitation' refers to the various sounds that people make when they are uncertain or hesitant about something. The crossword solutions for this term are UHS (3 letters), UMS (3 letters), ERS (3 letters), and EHS (3 letters). These sounds are typically made with the mouth, and are often used to indicate uncertainty or hesitation. UHS stands for 'Uh-huh, ' which is a sound of agreement or understanding. UMS stands for 'Um, ' which is a sound of hesitation or doubt. ERS stands for 'ERR, ' which is a sound of confusion or uncertainty. Finally, EHS stands for 'EH, ' which is a sound of surprise or disbelief.