Explanation:

- Wail: This is a verb that means to make a prolonged high-pitched cry of pain, grief, or anger.

- Option 1: Passion: This refers to a strong and barely controllable emotion but doesn't imply sound or vocal expressions.

- Option 2: Sight: This is about visual perception – seeing something, unrelated to vocal expressions.

- Option 3: Keen: This indicates sharpness or eagerness but is not associated with crying or complaining.

- Option 4: Cry or complain: Wail involves making crying sounds often in distress, similar to "cry or complain."

The nearest synonym of the word "wail" is:

Option 4: Cry or complain