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 elate is "to fill with joy.", the definition for celebrated is "Widely known, respected.", and the definition for derivative is "Lacking originality."

The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for dubious is "questionable.", the definition for futile is "Without purpose, completely ineffective.", and the definition for frugal is "Thrifty, cheap."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for hedonism is "belief that pleasure is the sole aim of life.", the definition for extant is "Currently existing.", and the definition for pretense is "False intention or purpose."

The definition for accommodate is "To give consideration to." Used in a sentence: The hospitable couple was happy to accommodate the needs of their finicky guest. The definition for egotist is "self–important person.", the definition for benevolent is "Kind, helpful.", and the definition for demeanor is "Behavior towards others."

The definition for liability is "A person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage." Used in a sentence: Kevin's growing fatigue was a liability as he attempted to climb the steep hill. The definition for euphoria is "feeling of great happiness.", the definition for buffer is "Protective barrier.", and the definition for prominence is "Importance."