The definition for pallid is "Lacking color." Used in a sentence: The nurse was worried by the patient's pallid face and shallow breathing. The definition for curtail is "to make less.", the definition for corrosive is "Bitingly sarcastic.", and the definition for extant is "Currently existing."

The definition for foil is "One that enhances or underscores by contrast." Used in a sentence: The sweet cookie was a perfect foil to the sour lemon sorbet. The definition for regurgitate is "to pour out or throw back.", the definition for redouble is "To make twice as great.", and the definition for elusive is "Hard to grasp."

The definition for combustion is "Act of burning." Used in a sentence: Campers must use fire with great caution to prevent combustion of the parched brush. The definition for advantageous is "giving an advantage.", the definition for beneficial is "Helpful.", and the definition for precept is "A general rule of action."

The definition for duplicity is "Deceptive thought, speech, or action." Used in a sentence: The life of an undercover detective is filed with necessary duplicity. The definition for regale is "to amuse.", the definition for insolence is "Boldness or rudeness.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for prominence is "Importance." Used in a sentence: The singer's prominence ensured that the concert would sell out. The definition for pomp is "showy display.", the definition for parity is "Equality.", and the definition for compulsion is "An irresistible impulse."