Select the most appropriate synonym of the given word.

Pacify

The correct option is Soothe.

Explanation:
The word Pacify means to quell the anger, agitation, or excitement of someone, or to bring peace, calm, or tranquility to a situation.

Let's look at the meanings of the given options:

1. Soothe: To gently calm a person, reduce pain, or relieve feelings of distress. This has the same meaning as pacify.
2. Rebuke: To express sharp disapproval or criticism of someone.
3. Blame: To assign responsibility for a fault or wrong.
4. Strengthen: To make or become stronger.

Thus, among all the given options, Soothe is the most appropriate synonym for Pacify.