The definition for augment is "To make greater." Used in a sentence: Wanda read the dictionary every night to augment her vocabulary. The definition for accessible is "easy to reach or to approach.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for avian is "Relating to birds."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for salvage is "to save from ruin.", the definition for methodical is "Performed in an orderly manner.", and the definition for induce is "To influence or cause."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for diffident is "lacking self–confidence.", the definition for raucous is "Noisy, rowdy.", and the definition for eulogy is "Speech or writing in praise of deceased."

The definition for extol is "To praise highly." Used in a sentence: The statesman extolled the ambassador who single–handedly negotiated the peace treaty. The definition for futile is "without purpose, completely ineffective.", the definition for mundane is "Practical, ordinary.", and the definition for stern is "Harsh, severe."

The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for corrosive is "bitingly sarcastic.", the definition for inviolable is "Secure from assault of trespass.", and the definition for immoderate is "Beyond usual or proper limits."