Explanation:

- Deride: This word means to express contempt or ridicule towards someone or something. It often involves making fun of someone in a cruel way.

- Option 1: Approve

This means to officially agree to or accept as satisfactory. It is a positive affirmation or endorsement, which is the opposite of deride.

- Option 2: Admire

To admire means to regard someone or something with respect or warm approval. It represents a positive and flattering view, unlike deride.

- Option 3: Lift

This means to raise something to a higher position. It does not relate to mockery or ridicule.

- Option 4: Mock

This means to tease or laugh at in a scornful or contemptuous manner. It aligns closely with deride.

- Correct Answer:

Option 4: Mock is the synonym of deride.