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 derivative is "lacking originality.", the definition for oblivious is "Lacking awareness.", and the definition for pathos is "Sympathetic pity."

The definition for stern is "Harsh, severe." Used in a sentence: The stern principal canceled the prom after the seniors played a silly prank. The definition for untenable is "not able to be defended.", the definition for redouble is "To make twice as great.", and the definition for flaunt is "To display showily."

The definition for conduit is "Means for transmitting or distributing." Used in a sentence: Jason, a notorious gossip, was a conduit for information about his friends. The definition for drab is "dull, monotonous.", the definition for facade is "false or superficial appearance.", and the definition for archetypal is "Characteristic of the original model or perfect example."

The definition for demean is "To lower status." Used in a sentence: The embarrassing photograph demeaned the candidate in the eyes of the voters. The definition for preclude is "to rule out in advance.", the definition for proximity is "Closeness.", and the definition for derivative is "Lacking originality."

The definition for entangle is "To involve in trouble." Used in a sentence: Jonah regretted entangling Parker in his legal difficulties. The definition for onset is "beginning.", the definition for corrective is "Intended to correct.", and the definition for solace is "Source of consolation."