An ally shifts others' attention from their own voice (one that is easily heard)to marginalized voices (that have a harder time being heard).This is BEST described as

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An ally playing a supporting role helps to shift the attention from their own voice to marginalized voices. A good listener and continuing self-education are important aspects of being an ally but do not specifically address the act of shifting focus to marginalized voices. Seeing criticism as an opportunity for growth is important but it is not directly related to being an ally.

An Ally Shifts Others' Attention from Their Own Voice (One