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 facade is "false or superficial appearance.", the definition for negate is "To make invalid.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for beneficial is "Helpful." Used in a sentence: there is no doubt that eating vegetables is beneficial to one's health. The definition for exalt is "to elevate by praise.", the definition for elate is "To fill with joy.", and the definition for extenuating is "Partially excusing."

The definition for mandate is "An official order or commission to do something." Used in a sentence: Martha reluctantly obeyed the mandate to vacate her apartment. The definition for inflammatory is "tending to excite anger.", the definition for polarize is "To break up into opposing groups.", and the definition for parity is "Equality."

The definition for apathetic is "Showing little or no emotion." Used in a sentence: Carmine was concerned about his usually cheerful brother's apathetic attitude. The definition for drub is "to defeat decisively.", the definition for condone is "To treat as acceptable.", and the definition for dubious is "Questionable."

The definition for condone is "To treat as acceptable." Used in a sentence: Crystal condoned her friend's late arrival because she found it hard to be on time herself. The definition for stifle is "to repress or discourage.", the definition for genial is "Sympathetic, friendly.", and the definition for discern is "To recognize as separate as distinct."