The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for periodic is "occurring at regular intervals.", the definition for conduit is "Means for transmitting or distributing.", and the definition for buffer is "Protective barrier."

The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for drub is "to defeat decisively.", the definition for incidental is "Minor.", and the definition for oblivious is "Lacking awareness."

The definition for epitaph is "Brief statement honoring a dead person." Used in a sentence: "Beloved by all,"" was the epitaph Edgar chose for his wife's tombstone. The definition for moderate is "tending toward the average.", the definition for straddle is "To favor opposing sides.", and the definition for salvage is "To save from ruin."

The definition for frugal is "Thrifty, cheap." Used in a sentence: The frugal shopper only bought items that were on sale. The definition for drab is "dull, monotonous.", the definition for solace is "Source of consolation.", and the definition for disconcert is "To throw into confusion."

The definition for repentant is "Feeling regret." Used in a sentence: The repentant Dana admitted to cheating on the test. The definition for apathetic is "showing little or no emotion.", the definition for fraud is "Trick.", and the definition for catastrophic is "Relating to extreme misfortune."