- the mass of eggs, or spawn, within the ovarian membrane of the female fish.
- the milt or sperm of the male fish.
- the eggs of any of various crustaceans, as the coral of the lobster.
- return on equity.
- the ovary of a female fish filled with mature eggs
- the testis of a male fish filled with mature sperm
- the ripe ovary of certain crustaceans, such as the lobster
- short for roe deer
- (formerly) the defendant in a fictitious action, Doe versus Roe, to test a point of law