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 composed is "calm.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for trove is "Valuable collection."

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 implausible is "unbelievable.", the definition for melodious is "Having a pleasing melody.", and the definition for inviolable is "Secure from assault of trespass."

The definition for salvage is "To save from ruin." Used in a sentence: After the fire, Mrs. Han tried to salvage her family photos from the wreckage. The definition for melodious is "having a pleasing melody.", the definition for inflammatory is "Tending to excite anger.", and the definition for dubious is "Questionable."

The definition for ploy is "A contrived plan." Used in a sentence: Sarah thought George's ploy of borrowing her notes was a cowardly way to ask her out. The definition for civility is "politeness.", the definition for flourish is "To make bold, sweeping gestures.", and the definition for grandiose is "With an affectation of grandeur."

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 incidental is "minor.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for onset is "Beginning."