What is the difference between an orbital and a sublevel

Here's what I get  

Explanation:

An orbital is a region in space where an orbital is most likely to be found. It has a specific size, shape, and energy level, depending on its set of quantum numbers.

For example, the order of increasing orbital energies is n = 1, 2, 3, …. Orbitals with the same principal quantum number (n) belong to the same energy level.  

Orbitals in energy levels with n > 1 can be divided into groups depending on their secondary quantum number (l).

For example, the n=3 energy level consists of 10 orbitals —  one s, three p, and five d orbitals. the s, p, and d orbitals constitute three sublevels with slightly different energies in the n = 3 energy level.

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