Correct
灭口
/ mièkǒu /
Strokes
Definition
to kill sb to prevent them from divulging a secret/to silence sb
Example
As a Verb
(of a criminal) do away with a witness/accomplice to prevent leakage of information
1
Shārénmièkǒu
杀人灭口
silence a witness by killing him; kill sb to prevent him from disclosing a secret