Greatest Man of Middle-Earth??

[burrahobbit]

And the word trolls was interchangable with Orcs in the Silm for most part.

What?

Last of all Hurin stood alone. Then he cast aside his shield, and wielded an axe two-handed; and it is sung that the axe smoked in the black blood of the troll-guard of Gothmog until it withered, and each time that he slew Hurin cried: 'Aure entuluva! Day shall come again!' Seventy times he uttered that cry; but they took him at last alive, by the command of Morgoth, for the Orcs grappled him with their hands, which clung to him still though he hewed off heir arms; and ever their numbers were renewed, until at last he fell buried beneath them.

Here we see both terms being used in the same place. Are they describing the same thing? I'd like to see where you got that idea.