The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for nurture is "to further the development of.", the definition for aerate is "To supply with air.", and the definition for demean is "To lower status."

The definition for recrimination is "A retaliatory accusation." Used in a sentence: Frank, who was wounded by Sally's remark, made a bitter recrimination. The definition for nurture is "to further the development of.", the definition for diffident is "Lacking self–confidence.", and the definition for gravity is "Importance, significance."

The definition for fickle is "Lacking constancy, changeable." Used in a sentence: The fickle Senji had a new best friend every month. The definition for trove is "valuable collection.", the definition for promote is "To contribute to the growth or prosperity of.", and the definition for punctual is "On time."

The definition for adversary is "One who opposes or resists." Used in a sentence: Franklin hoped to defeat his adversary in the afternoon's tennis match. The definition for lenient is "mild or tolerant.", the definition for stern is "Harsh, severe.", and the definition for authoritarian is "Favoring absolute obedience to authority."

The definition for dubious is "Questionable." Used in a sentence: Karl found Kevin's claim that he was sick dubious, as he had just seen him playing football. The definition for moderate is "tending toward the average.", the definition for commemorate is "To mark by a ceremony.", and the definition for pallid is "Lacking color."