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 scamper is "to run quickly.", the definition for extol is "To praise highly.", and the definition for straddle is "To favor opposing sides."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for authoritarian is "favoring absolute obedience to authority.", the definition for solace is "Source of consolation.", and the definition for incidental is "Minor."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for diffident is "lacking self–confidence.", the definition for celebrated is "Widely known, respected.", and the definition for incisive is "Impressively direct and decisive."

The definition for preclude is "To rule out in advance." Used in a sentence: "Having cake now will preclude dessert later," said Amber's mother. The definition for abate is "become less in amount or intensity.", the definition for polarize is "To break up into opposing groups.", and the definition for untenable is "Not able to be defended."

The definition for parity is "Equality." Used in a sentence: Hilda, to avoid squabbles, aimed for parity in the slices of birthday cake. The definition for gargantuan is "gigantic.", the definition for elate is "To fill with joy.", and the definition for manifest is "Obvious."