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 inflammatory is "tending to excite anger.", the definition for redouble is "To make twice as great.", and the definition for frugal is "Thrifty, cheap."

The definition for egotist is "Self–important person." Used in a sentence: Darren dreaded carpooling with the egotist Shelly, who talked about herself nonstop. The definition for commemorate is "to mark by a ceremony.", the definition for implausible is "Unbelievable.", and the definition for unscrupulous is "Lacking principles."

The definition for euphoria is "Feeling of great happiness." Used in a sentence: Cassandra was overcome with euphoria when she met her long–lost sister. The definition for straddle is "to favor opposing sides.", the definition for aerate is "To supply with air.", and the definition for impenitent is "Lacking remorse."

The definition for salvage is "To save from ruin." Used in a sentence: After the fire, Mrs. Han tried to salvage her family photos from the wreckage. The definition for derivative is "lacking originality.", the definition for clarity is "Clearness.", and the definition for gravity is "Importance, significance."

The definition for stealth is "The act of moving secretly or unnoticed." Used in a sentence: The burglar took the ring by stealth, slipping it from the sleeping woman's finger. The definition for punctual is "on time.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for iridescent is "Having a lustrous or attractivve quality."