The definition for foil is "One that enhances or underscores by contrast." Used in a sentence: The sweet cookie was a perfect foil to the sour lemon sorbet. The definition for promote is "to contribute to the growth or prosperity of.", the definition for defiant is "Showing bold resistance.", and the definition for onset is "Beginning."

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 avian is "relating to birds.", the definition for elusive is "Hard to grasp.", and the definition for catastrophic is "Relating to extreme misfortune."

The definition for procrastinate is "To put off intentionally." Used in a sentence: Yvonne's father urged, "Don't procrastinate. Clean your room right away." The definition for interminable is "never ending, or seemingly endless.", the definition for pathos is "Sympathetic pity.", and the definition for trove is "Valuable collection."

The definition for onset is "Beginning." Used in a sentence: Crocuses bloom at the onset of spring, sometimes even before the snow melts. The definition for proximity is "closeness.", the definition for lenient is "Mild or tolerant.", and the definition for naive is "Lacking worldy wisdom."

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 adversary is "one who opposes or resists.", the definition for incidental is "Minor.", and the definition for disconcert is "To throw into confusion."