Simple past tense and past participle of co-opt.(verb)
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Use "co-opted" in a sentence
"Black Friday is a term co-opted by retailers to refer to the time of year when their business moves into the black, or turns a profit."
"Your being co-opted by people that were never TEA partiers."
"The freedoms granted by the Constitution are being co-opted by them and perverted so that laws necessary for a civilized society are a threat to them."