  Real projective structures on $n$-orbifolds are useful in understanding the
space of representations of discrete groups into $SL(n+1, \mathbb{R})$ or
$PGL(n+1, \mathbb{R})$. A recent work shows that many hyperbolic manifolds
deform to manifolds with such structures not projectively equivalent to the
original ones. The purpose of this paper is to understand the structures of
ends of real projective $n$-dimensional orbifolds. In particular, these have
the radial or totally geodesic ends. Hyperbolic manifolds with cusps and
hyper-ideal ends are examples. For this, we will study the natural conditions
on eigenvalues of holonomy representations of ends when these ends are
manageably understandable. The main techniques are the theory of Fried and
Goldman on affine manifolds, a generalization of the work of Goldman, Labourie,
and Margulis on flat Lorentzian $3$-manifolds and the work on Riemannian
foliations by Molino, Carri\`ere, and so on. We will show that only the radial
or totally geodesic ends of lens type or horospherical ends exist for strongly
irreducible properly convex real projective orbifolds under the suitable
conditions.
