梅Plum tree. A deciduous tree of the rose family, and its fruit. One of the family crests. The season when the plum fruit ripens. Refers to the grade (pine, bamboo, plum). The language of this flower is "Keep your promise", "fidelity" and "beauty and longevity".
汐Evening tide. The ebb and flow of the tide. The periodic rise and fall of seawater due to the gravitational pull of the moon and sun. The right time for things to happen.
流Flow. The flow of water, etc. To spread in the world. To send to a distant place. To wander. To end without taking shape. To deviate from the original purpose. A unit of flag. Technique. Style. Companions.
乃In other words. For that reason. So. A long time ago. In the past. You. A second-person pronoun for a person of equal or inferior status. The word for "no" is used in particles.