Sometimes it has everyday meanings as in our illustrations. When charis refers to the response of a receiver , it means thanks or gratitude . Between Luke and Revelation there are many doctrinal uses of charis. So central is grace to NT Christianity that it became the apostolic greeting to the saints. We who believe in charis must be always vigilant to communicate God's grace unencumbered with our additions, dilutions, and contradictions.
Otherwise grace is no longer grace.
It has lost its graciousness and power, not to mention its charm.