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 placebo is "an inactive substance used in medical testing.", the definition for adversary is "One who opposes or resists.", and the definition for garish is "Offensively bright."

The definition for intricate is "Having complex and interrelated parts." Used in a sentence: The intricate poem baffled most readers with its numerous obscure metaphors. The definition for polarize is "to break up into opposing groups.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for corroborate is "To support with evidence."

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 accentuate is "to emphasize.", the definition for insolence is "Boldness or rudeness.", and the definition for straddle is "To favor opposing sides."

The definition for facade is "false or superficial appearance." Used in a sentence: Emily's smile is just a facade masking her broken heart. The definition for avian is "relating to birds.", the definition for augment is "To make greater.", and the definition for extenuating is "Partially excusing."

The definition for methodical is "Performed in an orderly manner." Used in a sentence: Oscar's methodical approach exasperated his free–spirited friend Ben. The definition for promote is "to contribute to the growth or prosperity of.", the definition for diffident is "Lacking self–confidence.", and the definition for benefactor is "One who offers financial help."