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 rancorous is "marked by deep ill–will.", the definition for iridescent is "Having a lustrous or attractivve quality.", and the definition for condone is "To treat as acceptable."

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 penurious is "extrememly stingy.", the definition for rail is "To scold in harsh language.", and the definition for revoke is "To cancel by taking back."

The definition for sociable is "Inclined to seek companionship." Used in a sentence: The sociable Glenda was delighted to receive the party invitation. The definition for redouble is "to make twice as great.", the definition for colossal is "Immense, enormous.", and the definition for ethical is "Conforming to accepted standards."

The definition for mediate is "To come between parties in order to reconcile." Used in a sentence: The diplomatic Henry was able to mediate between the quarreling sisters. The definition for gruff is "rough or stern in manner or speech.", the definition for garish is "Offensively bright.", and the definition for sociable is "Inclined to seek companionship."

The definition for augment is "To make greater." Used in a sentence: Wanda read the dictionary every night to augment her vocabulary. The definition for incisive is "impressively direct and decisive.", the definition for ethical is "Conforming to accepted standards.", and the definition for gravity is "Importance, significance."