The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for civility is "politeness.", the definition for moderate is "Tending toward the average.", and the definition for fidelity is "State of being faithful."

The definition for beneficial is "Helpful." Used in a sentence: there is no doubt that eating vegetables is beneficial to one's health. The definition for recrimination is "a retaliatory accusation.", the definition for ploy is "A contrived plan.", and the definition for exalt is "To elevate by praise."

The definition for proximity is "Closeness." Used in a sentence: The proximity of Tia's house to school meant that she could walk there in five minutes. The definition for naive is "lacking worldy wisdom.", the definition for illuminate is "To make clear.", and the definition for induce is "To influence or cause."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for rehash is "to discuss again.", the definition for untenable is "Not able to be defended.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for oblivious is "Lacking awareness." Used in a sentence: Love–struck Charlie was oblivious to everyone but the object of his affection. The definition for rail is "to scold in harsh language.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for flaunt is "To display showily."