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 avian is "relating to birds.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for brandish is "To shake or wave menacingly."

The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for flagrant is "noticeably offensive.", the definition for impenitent is "Lacking remorse.", and the definition for flourish is "To make bold, sweeping gestures."

The definition for scamper is "To run quickly." Used in a sentence: The frightened kitten scampered away from the butterfly. The definition for civility is "politeness.", the definition for fidelity is "State of being faithful.", and the definition for plaudits is "Enthusiastic approval."

The definition for elusive is "Hard to grasp." Used in a sentence: The words to the song are elusive, as the singer tends to mumble. The definition for melee is "a tumultuous fight among several people.", the definition for accommodate is "To give consideration to.", and the definition for deferment is "The act of delaying."

The definition for duplicity is "Deceptive thought, speech, or action." Used in a sentence: The life of an undercover detective is filed with necessary duplicity. The definition for heinous is "shockingly evil.", the definition for proximity is "Closeness.", and the definition for ploy is "A contrived plan."