  In this paper, we prove the boundary Lipschitz regularity and the Hopf Lemma
by a unified method on Reifenberg domains for fully nonlinear elliptic
equations. Precisely, if the domain $\Omega$ satisfies the exterior Reifenberg
$C^{1,\mathrm{Dini}}$ condition at $x_0\in \partial \Omega$ (see Definition
1.3), the solution is Lipschitz continuous at $x_0$; if $\Omega$ satisfies the
interior Reifenberg $C^{1,\mathrm{Dini}}$ condition at $x_0$ (see Definition
1.4), the Hopf lemma holds at $x_0$. Our paper extends the results under the
usual $C^{1,\mathrm{Dini}}$ condition.
