The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for naive is "lacking worldy wisdom.", the definition for elate is "To fill with joy.", and the definition for appraise is "To evaluate the worth of."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for mandate is "an official order or commission to do something.", the definition for mundane is "Practical, ordinary.", and the definition for dubious is "Questionable."

The definition for discern is "To recognize as separate as distinct." Used in a sentence: The pastry connoisseur was able to discern Swiss from Belgian chocolate. The definition for salvage is "to save from ruin.", the definition for adversary is "One who opposes or resists.", and the definition for colossal is "Immense, enormous."

The definition for corroborate is "To support with evidence." Used in a sentence: "Unless you can corroborate your story, it will not be admissible in court," the attorney told his client. The definition for pretentious is "making unjustified claims.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for fragile is "Delicate."

The definition for derelict is "Abandoned." Used in a sentence: The derelict house was condemned as a public hazard. The definition for extenuating is "partially excusing.", the definition for cunning is "Showing clever insight.", and the definition for revoke is "To cancel by taking back."