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 exception is "a case to which the rule does not apply.", the definition for revoke is "To cancel by taking back.", and the definition for rail is "To scold in harsh language."

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 revoke is "to cancel by taking back.", the definition for diffident is "Lacking self–confidence.", and the definition for corroborate is "To support with evidence."

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 benefactor is "one who offers financial help.", the definition for punctual is "On time.", and the definition for authoritarian is "Favoring absolute obedience to authority."

The definition for buffer is "Protective barrier." Used in a sentence: The dense trees acted as a buffer against the heavy rain. The definition for compulsion is "an irresistible impulse.", the definition for fidelity is "State of being faithful.", and the definition for comprehensible is "Understandable."

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 appraise is "to evaluate the worth of.", the definition for entangle is "To involve in trouble.", and the definition for advantageous is "Giving an advantage."