The definition for brandish is "To shake or wave menacingly." Used in a sentence: The baseball player was fined for brandishing his bat at the opposing pitcher. The definition for rancorous is "marked by deep ill–will.", the definition for supple is "Flexible.", and the definition for penurious is "Extrememly stingy."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for buffer is "protective barrier.", the definition for negate is "To make invalid.", and the definition for demean is "To lower status."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for gargantuan is "gigantic.", the definition for impenitent is "Lacking remorse.", and the definition for appraise is "To evaluate the worth of."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for foil is "one that enhances or underscores by contrast.", the definition for extant is "Currently existing.", and the definition for incongruous is "Not harmonious, incompatible."

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 rehash is "to discuss again.", the definition for impenitent is "Lacking remorse.", and the definition for manifest is "Obvious."