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 gravity is "importance, significance.", the definition for sociable is "Inclined to seek companionship.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for preclude is "To rule out in advance." Used in a sentence: "Having cake now will preclude dessert later," said Amber's mother. The definition for commemorate is "to mark by a ceremony.", the definition for grandiose is "With an affectation of grandeur.", and the definition for euphoria is "Feeling of great happiness."

The definition for ethical is "Conforming to accepted standards." Used in a sentence: Mary did the ethical thing and turned in the diamond necklace she found. The definition for frugal is "thrifty, cheap.", the definition for curtail is "To make less.", and the definition for adversary is "One who opposes or resists."

The definition for entangle is "To involve in trouble." Used in a sentence: Jonah regretted entangling Parker in his legal difficulties. The definition for antidote is "something that relieves or counteracts.", the definition for equitable is "Fair and equal.", and the definition for mediate is "To come between parties in order to reconcile."

The definition for compulsion is "An irresistible impulse." Used in a sentence: Tamar, a shoe fanatic, could not resist the compulsion to buy the shiny red boots. The definition for fraud is "trick.", the definition for revive is "To bring back to life.", and the definition for epistolary is "Contained or carried on in letters."