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stop (someone or something) from doing something or being in a certain state; "We must prevent the cancer from spreading"; "His snoring kept me from falling asleep"; "Keep the child from eating the marbles"
reduce or dispose of; cease to hold (an investment); "The company decided to divest"; "the board of trustees divested $20 million in real estate property"; "There was pressure on the university to disinvest in South Africa"