The definition for solace is "Source of consolation." Used in a sentence: Parents' weekend was a solace to Marjorie, whose beloved daughter had left for college. The definition for advantageous is "giving an advantage.", the definition for buffer is "Protective barrier.", and the definition for apathetic is "Showing little or no emotion."

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 civility is "politeness.", the definition for extenuating is "Partially excusing.", and the definition for interminable is "Never ending, or seemingly endless."

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 corrective is "intended to correct.", the definition for fraud is "Trick.", and the definition for aerate is "To supply with air."

The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for meticulous is "extrememly careful regarding details.", the definition for inviolable is "Secure from assault of trespass.", and the definition for preclude is "To rule out in advance."

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 incumbent is "necessary as a duty or responsibility.", the definition for extant is "Currently existing.", and the definition for repel is "To resist, reject."