The word "shaking down" denotes the act of extorting money from someone or illegally searching them for money or valuables. Its antonyms, on the other hand, include words like returning, giving, offering, and donating, which all represent acts of providing or giving something without any coercion or manipulation. Other antonyms for "shaking down" are surrendering, relinquishing, and yielding, which refer to the act of submitting oneself to the authority or power of someone else. These antonyms convey a sense of trust, acquiescence, and generosity that stand in stark contrast to the deception and exploitation associated with the act of shaking someone down.