The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for epistolary is "contained or carried on in letters.", the definition for celebrated is "Widely known, respected.", and the definition for frugal is "Thrifty, cheap."

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 foil is "one that enhances or underscores by contrast.", the definition for buffer is "Protective barrier.", and the definition for equitable is "Fair and equal."

The definition for absolve is "To forgive; to free from guilt." Used in a sentence: Marta felt greatly relieved after her mother absolved her for breaking the vase. The definition for polarize is "to break up into opposing groups.", the definition for intricate is "Having complex and interrelated parts.", and the definition for epitaph is "Brief statement honoring a dead person."

The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for abate is "become less in amount or intensity.", the definition for straddle is "To favor opposing sides.", and the definition for perception is "Capacity for seeing or understanding."

The definition for trove is "Valuable collection." Used in a sentence: Walter's trove of vintage baseball cards was worth thousands of dollars. The definition for belated is "past the normal or proper time.", the definition for apathetic is "Showing little or no emotion.", and the definition for intricate is "Having complex and interrelated parts."