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 diffident is "lacking self–confidence.", the definition for implement is "To carry out or accomplish.", and the definition for oblivious is "Lacking awareness."

The definition for fickle is "Lacking constancy, changeable." Used in a sentence: The fickle Senji had a new best friend every month. The definition for fragile is "delicate.", the definition for revive is "To bring back to life.", and the definition for mediate is "To come between parties in order to reconcile."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for epitaph is "brief statement honoring a dead person.", the definition for drab is "Dull, monotonous.", and the definition for rhapsody is "State of great happiness."

The definition for dubious is "Questionable." Used in a sentence: Karl found Kevin's claim that he was sick dubious, as he had just seen him playing football. The definition for appalling is "inspiring dismay or disgust.", the definition for pantomime is "Telling a story through gestures.", and the definition for combustion is "Act of burning."

The definition for ploy is "A contrived plan." Used in a sentence: Sarah thought George's ploy of borrowing her notes was a cowardly way to ask her out. The definition for corrective is "intended to correct.", the definition for pathos is "Sympathetic pity.", and the definition for euphoria is "Feeling of great happiness."