The definition for buffer is "Protective barrier." Used in a sentence: The dense trees acted as a buffer against the heavy rain. The definition for stern is "harsh, severe.", the definition for garish is "Offensively bright.", and the definition for discern is "To recognize as separate as distinct."

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 apathetic is "showing little or no emotion.", the definition for inflammatory is "Tending to excite anger.", and the definition for foil is "One that enhances or underscores by contrast."

The definition for camaraderie is "Spirit of friendship." Used in a sentence: The manager hoped the retreat would increase the camaraderie among the feuding workers. The definition for negate is "to make invalid.", the definition for foil is "One that enhances or underscores by contrast.", and the definition for surplus is "Excess."

The definition for authoritarian is "Favoring absolute obedience to authority." Used in a sentence: Marco's authoritarian mother never allowed him to watch more than one hour of television a day. The definition for opportune is "suitable or convenient.", the definition for conduit is "Means for transmitting or distributing.", and the definition for periodic is "Occurring at regular intervals."

The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for surplus is "excess.", the definition for derelict is "Abandoned.", and the definition for mediate is "To come between parties in order to reconcile."