浪 is built from the 氵 (water (left)) and 良 components.
It reads ロウ like 良, as do 郎, 朗, and 養 — learn 良 once and the family's reading comes with it.
A common word using 浪 is 浪費 (ろうひ), meaning “waste, extravagance”.
Don't confuse it with 郎, 朗, 娘, and 廊.