竜Dragon. An imaginary animal. An outstanding person. A hero. A parable of the Son of Heaven. A word used for things related to the Son of Heaven. Dinosaurs.
孝A child who serves his or her parents well. Cherish your parents. To take good care of one's ancestors. A person who has inherited ideas, goals, etc. from parents or ancestors.
公Public. Matters concerning the country or government. Government, state, office. To be known by many people. Obvious. Something ostensible. Unbiased. Correct. Neutral. A person of high status, such as a son, emperor, or monarch.
橙Bitter orange (a kind of fruit tree). A fruit of the mandarin orange family. The fruit is used to decorate Kagamimochi (mirror-shaped rice cakes) and the center of Shimenawa (ropes) at New Year's. It is considered a fruit of good luck.