Alpha/Beta/Omega is a kink trope wherein some or all people have defined biological roles based on a hierarchical system, with the terms originating from animal behaviour research. There may be werewolf, knotting, or other animalistic elements involved, or the characters may be otherwise purely human.
α = Alpha, is able to impregnate Omegas. Male Alphas have a knot. Ω = Omega, can become pregnant. β = Beta, are subordinate to Alphas and may or may not be able to impregnate Omegas.
