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 promote is "to contribute to the growth or prosperity of.", the definition for incidental is "Minor.", and the definition for rancorous is "Marked by deep ill–will."

The definition for compulsion is "An irresistible impulse." Used in a sentence: Tamar, a shoe fanatic, could not resist the compulsion to buy the shiny red boots. The definition for disdain is "feeling of contempt.", the definition for induce is "To influence or cause.", and the definition for preclude is "To rule out in advance."

The definition for nurture is "To further the development of." Used in a sentence: Our cat made a nest of blankets to nurture her newborn kittens. The definition for revive is "to bring back to life.", the definition for insinuate is "To suggest indirectly.", and the definition for turmoil is "Extreme confusion, agitation."

The definition for fidelity is "State of being faithful." Used in a sentence: Unlike her fickle friend Benji, May Belle was known for her fidelity. The definition for avian is "relating to birds.", the definition for turmoil is "Extreme confusion, agitation.", and the definition for duplicity is "Deceptive thought, speech, or action."

The definition for drab is "Dull, monotonous." Used in a sentence: The drab winter scene made Keisha long for the vibrant colors of spring. The definition for catastrophic is "relating to extreme misfortune.", the definition for aesthete is "Person having or affecting sensitivity to beauty.", and the definition for adversary is "One who opposes or resists."