To find the 10th term of the sequence described by the formula \( a_n = 4n - 4 \), we need to substitute \( n = 10 \) into the formula.
Calculating this gives:
\[ a_{10} = 4(10) - 4 \] \[ = 40 - 4 \] \[ = 36 \]
Thus, the 10th term of the sequence is \( \boxed{36} \).