Definition of "think up" [think up]

• To create in one’s mind; to invent. (verb)

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• "You think up something as vile and murderous and nonsensical as this and you think Wolf Meynert is going to save the world?"
• "At home, parents can play word games in which children think up as many words as they can that, say, contain “auto-” and then talk about what all those words have in common."
• "Occasionally the other Postulants and I would think up some mischief."