The definition for scamper is "To run quickly." Used in a sentence: The frightened kitten scampered away from the butterfly. The definition for placebo is "an inactive substance used in medical testing.", the definition for aerate is "To supply with air.", and the definition for periodic is "Occurring at regular intervals."

The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for unscrupulous is "lacking principles.", the definition for stifle is "To repress or discourage.", and the definition for dubious is "Questionable."

The definition for lenient is "Mild or tolerant." Used in a sentence: The judge issued a lenient sentence because it was Frank's first offense. The definition for raucous is "noisy, rowdy.", the definition for indecorous is "In bad taste.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for incisive is "Impressively direct and decisive." Used in a sentence: Samir's incisive leadership made him the natural choice for president of the company. The definition for disconcert is "to throw into confusion.", the definition for ploy is "A contrived plan.", and the definition for scamper is "To run quickly."

The definition for beneficial is "Helpful." Used in a sentence: there is no doubt that eating vegetables is beneficial to one's health. The definition for incidental is "minor.", the definition for buffoonery is "Foolish behavior.", and the definition for civility is "Politeness."