The definition for flaw is "An imperfection." Used in a sentence: The otherwise perfect diamond had a tiny flaw that reduced its value. The definition for placebo is "an inactive substance used in medical testing.", the definition for servile is "Fearfully submissive.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for elate is "To fill with joy." Used in a sentence: It elated Margaret to be awarded first place in the science fair. The definition for moderate is "tending toward the average.", the definition for procrastinate is "To put off intentionally.", and the definition for archaic is "Characteristic of an earlier time."

The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for epistolary is "contained or carried on in letters.", the definition for perception is "Capacity for seeing or understanding.", and the definition for grandiose is "With an affectation of grandeur."

The definition for revoke is "To cancel by taking back." Used in a sentence: After Kal's father revoked his allowance, he had no money for the movies. The definition for epistolary is "contained or carried on in letters.", the definition for recrimination is "A retaliatory accusation.", 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 genial is "sympathetic, friendly.", the definition for conduit is "Means for transmitting or distributing.", and the definition for archaic is "Characteristic of an earlier time."