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 iridescent is "having a lustrous or attractivve quality.", the definition for commemorate is "To mark by a ceremony.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for polarize is "To break up into opposing groups." Used in a sentence: Thelma tended to polarize discussions rather than to encourage compromise. The definition for recrimination is "a retaliatory accusation.", the definition for curtail is "To make less.", and the definition for rhapsody is "State of great happiness."

The definition for extenuating is "Partially excusing." Used in a sentence: The extenuating circumstance of Calvin's illness caused the teacher to excuse his lateness. The definition for absolve is "to forgive; to free from guilt.", the definition for implausible is "Unbelievable.", and the definition for condone is "To treat as acceptable."

The definition for abate is "Become less in amount or intensity." Used in a sentence: Just when it seemed the rain would never stop, the storm suddenly began to abate. The definition for rehash is "to discuss again.", the definition for regale is "To amuse.", and the definition for polarize is "To break up into opposing groups."

The definition for pretense is "False intention or purpose." Used in a sentence: The jewel thief entered the mansion under the pretense of fixing a leaky faucet. The definition for straddle is "to favor opposing sides.", the definition for combustion is "Act of burning.", and the definition for negate is "To make invalid."