In a cooperative manner; working with others on a task as part of a team.(adverb)
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Use "cooperatively" in a sentence
"You’re not seriously suggesting that making appeals to individual people to drive cooperatively is less efficient than government regulation of traffic signals, are you?"
"Walcott, Wallace and Price "cooperatively" turned themselves in after warrants were obtained Tuesday, according to the police statement."
"If co-ops could bargain with them collectively (make that "cooperatively"), they could demand substantial savings."