The definition for heed is "To pay attention to." Used in a sentence: "Heed my advice," the fortuneteller warned Sebastian when he tried to ignore her prophecy. The definition for serenity is "calmness.", the definition for abate is "Become less in amount or intensity.", and the definition for beneficial is "Helpful."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for immoderate is "beyond usual or proper limits.", the definition for genial is "Sympathetic, friendly.", and the definition for stern is "Harsh, severe."

The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for dubious is "questionable.", the definition for discern is "To recognize as separate as distinct.", and the definition for opportune is "Suitable or convenient."

The definition for prudent is "Marked by wisdom, shrewd." Used in a sentence: Manny was happy she followed Greg's prudent advice to study, as the test was difficult. The definition for manifest is "obvious.", the definition for civility is "Politeness.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for colossal is "Immense, enormous." Used in a sentence: After pushing with all his might, Frank realized he could never move the colossal boulder. The definition for onset is "beginning.", the definition for gargantuan is "Gigantic.", and the definition for elate is "To fill with joy."