up and down, the upper and the lower / outerwear and underwear / the nobility and the commoners

a (morning) tide / seawater / a tidal current / Short for 潮汁 (ushiojiru): a thin soup of fish or shellfish boiled in seawater

a place name / a surname / a female given name

tide / saltwater / opportunity

a (morning) tide / seawater / a (usually favorable) chance or opportunity / charm, attractiveness

a surname / a female given name / a surname / a female given name

ascending and descending, ascent and descent

to ascend and descend, to go up and go down

rise and fall, fluctuation (as a level of something, such as a price)

raising and lowering of something / loading and unloading (as of the cargo in a ship) / weaving on a loom (from the way the warp is raised and lowered)