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 preclude is "to rule out in advance.", the definition for ecstatic is "Overwhelmingly emotional.", and the definition for scamper is "To run quickly."

The definition for perception is "Capacity for seeing or understanding." Used in a sentence: His incredible perception made him the best detective on the force. The definition for regurgitate is "to pour out or throw back.", the definition for obnoxious is "Highly offensive.", and the definition for polarize is "To break up into opposing groups."

The definition for absolve is "To forgive; to free from guilt." Used in a sentence: Marta felt greatly relieved after her mother absolved her for breaking the vase. The definition for hedonism is "belief that pleasure is the sole aim of life.", the definition for derelict is "Abandoned.", and the definition for illuminate is "To make clear."

The definition for disconcert is "To throw into confusion." Used in a sentence: Jennifer's outspoken criticism of the meal disoncerted the waiter. The definition for foil is "one that enhances or underscores by contrast.", the definition for fraud is "Trick.", and the definition for apathetic is "Showing little or no emotion."

The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for opportune is "suitable or convenient.", the definition for accommodate is "To give consideration to.", and the definition for implausible is "Unbelievable."