The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for scamper is "to run quickly.", the definition for implausible is "Unbelievable.", and the definition for beneficial is "Helpful."

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 cunning is "showing clever insight.", the definition for manifest is "Obvious.", and the definition for retroactive is "effective as of a prior time or condition."

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 heinous is "shockingly evil.", the definition for stifle is "To repress or discourage.", and the definition for extant is "Currently existing."

The definition for archetypal is "Characteristic of the original model or perfect example." Used in a sentence: Shakespeare's sonnets are considered archetypal love poems The definition for elate is "to fill with joy.", the definition for demeanor is "Behavior towards others.", and the definition for buffoonery is "Foolish behavior."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for revoke is "to cancel by taking back.", the definition for inauspicious is "Not favorable.", and the definition for insinuate is "To suggest indirectly."