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 extant is "currently existing.", the definition for avian is "Relating to birds.", and the definition for opportune is "Suitable or convenient."

The definition for nurture is "To further the development of." Used in a sentence: Our cat made a nest of blankets to nurture her newborn kittens. The definition for disdain is "feeling of contempt.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for frugal is "Thrifty, cheap."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for buffer is "protective barrier.", the definition for mundane is "Practical, ordinary.", and the definition for flaw is "An imperfection."

The definition for polarize is "To break up into opposing groups." Used in a sentence: Thelma tended to polarize discussions rather than to encourage compromise. The definition for combustion is "act of burning.", the definition for archaic is "Characteristic of an earlier time.", and the definition for trove is "Valuable collection."

The definition for impenitent is "Lacking remorse." Used in a sentence: The impenitent criminal received a harsh penalty, but his remorseful accomplice was released. The definition for prominence is "importance.", the definition for parity is "Equality.", and the definition for mandate is "An official order or commission to do something."