The definition for corroborate is "To support with evidence." Used in a sentence: "Unless you can corroborate your story, it will not be admissible in court," the attorney told his client. The definition for placebo is "an inactive substance used in medical testing.", the definition for revive is "To bring back to life.", and the definition for preclude is "To rule out in advance."

The definition for camaraderie is "Spirit of friendship." Used in a sentence: The manager hoped the retreat would increase the camaraderie among the feuding workers. The definition for supple is "flexible.", the definition for futile is "Without purpose, completely ineffective.", and the definition for demean is "To lower status."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for adversary is "one who opposes or resists.", the definition for rhapsody is "State of great happiness.", and the definition for lurid is "Causing horror, shocking."

The definition for repentant is "Feeling regret." Used in a sentence: The repentant Dana admitted to cheating on the test. The definition for oblivious is "lacking awareness.", the definition for mandate is "An official order or commission to do something.", and the definition for distortion is "The act of twisting out of shape."

The definition for appraise is "To evaluate the worth of." Used in a sentence: Simone, an expert in African sculpture, was asked to appraise the ambassador's collection of masks. The definition for condone is "to treat as acceptable.", the definition for gargantuan is "Gigantic.", and the definition for unscrupulous is "Lacking principles."