Question

What device is being used here.
“He heard the chief clerk exclaim a loud "Oh!"”

Answer 1

Onomatopoeia

Onomatopoeia is the naming of a thing or action by a vocal imitation of the sound associated with it (such as buzz, hiss, oh)

Answer 2

Onomatopoeia

Step-by-step explanation:

Onomatopoeias are words that are spelt exactly how the sound , and in the sentence it say say the clerk let out a loud "Oh".