Definition of "at length" []

• For a long time. (phrase)
• At last, finally. (phrase)

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• "She thinks up projects and explains them at length to Anna the typist, who shrinks like a turtle into her worn-out suit every time Tatiana Vasilievna sails into the room."
• "Keiley spoke at length on several aspects he considered pertinent to the investment:"
• "Aristotle, in his "Categories" places quantity (with which he deals at length from the logical standpoint in the sixth chapter) first in his enumeration of the nine accidents."