Orc and Goblin are two names for the same creature. JRRT used them interchangeably.
Saruman did not cross Men and Orcs to create the Uruk-hai. Saruman did have Half-orcs (made by crossing Men and Orcs), but these are seperate from the Uruk-hai. Saruman did not create the Uruk-hai. Sauron had Uruk-hai as well.
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Tar-Elenion
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