With the help of the given clues, unscramble the letters to make a meaningful word.
CNSTURAIOL (Sound with fre quency above 20 kHz).

Explanation

To unscramble the letters "CNSTURAIOL" into a meaningful word that refers to sound with a frequency above 20 kHz, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Clue**: The clue provided is "Sound with frequency above 20 kHz." This indicates we are looking for a specific term related to sound.

2. **Analyze the Given Letters**: The letters we have are C, N, S, T, R, U, A, I, O, L.

...