Countries across Africa are joining global protests in response to the death of George Floyd. Moky Makrua, executive director of nonprofit Africa No Filter, explains why the Black Lives Matter movement is especially taking off in South Africa, where parallels of racism can be drawn with that in the U.S. Also, Merriam-Webster Dictionary will change its definition of racism after receiving a letter from Kennedy Mitchum, a recent graduate, who suggested that the definition should include a reference to systemic oppression.