Englishfor English speakers
underwater
—
adjective
(= submerged)
beneath the surface of the water
submerged rocks
—
adjective
(= subaqueous, submerged)
growing or remaining under water
viewing subaqueous fauna from a glass-bottomed boat
submerged leaves
riser
—
noun
structural member consisting of the vertical part of a stair or step
—
noun
a vertical pipe in a building
—
noun
a person who rises (especially from bed)
he's usually a late riser