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 advantageous is "giving an advantage.", the definition for illuminate is "To make clear.", and the definition for servile is "Fearfully submissive."

The definition for demean is "To lower status." Used in a sentence: The embarrassing photograph demeaned the candidate in the eyes of the voters. The definition for authoritarian is "favoring absolute obedience to authority.", the definition for revoke is "To cancel by taking back.", and the definition for flagrant is "Noticeably offensive."

The definition for fragile is "Delicate." Used in a sentence: Jade placed the fragile vase out of reach of her rambunctious boys. The definition for commemorate is "to mark by a ceremony.", the definition for awe is "Emotion combining dread and wonder.", and the definition for impenitent is "Lacking remorse."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for ploy is "a contrived plan.", the definition for buffoonery is "Foolish behavior.", and the definition for intricate is "Having complex and interrelated parts."

The definition for aerate is "To supply with air." Used in a sentence: Every spring, Soloman used his tiller to aerate the compact soil. The definition for frugal is "thrifty, cheap.", the definition for celebrated is "Widely known, respected.", and the definition for aerate is "To supply with air."