伯Count. The oldest person in the family. The eldest of siblings. Uncle. Father's or mother's elder brother. The third of the five grades of titles. A person who excels in one art.
幸Happiness. Fortunately. Good luck. Thankfulness. To care for. To take good care of. Blessing. The outings and travels of an emperor, a son, or a superior.
空Sky. Atmosphere. Heaven. Big. Wide. Empty. No substance. Meaningless. Useless. In Buddhism, something without substance or essence. A thing related to aviation.
圭Jewel with a pointed tip and decorated with a ball. A jewel given by the Emperor to the lords as proof of their status. Angular. To make things rough instead of amicable.