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Use "powerfulness" in a sentence
"The "powerfulness" of the ending would be incredible if they chose to do that: no Edward throughout the beginning of the movie, but in the end he returns. (well Bella finds him, but you get the point)"
"I think new advances in technology will truly take away from the powerfulness of the show."
"Ash'arites appear stoic in privileging God's all-powerfulness, but only if they are seen as negating God's goodness, mercy, justice and other attributes."