Someone vs Somebody
there's any difference between those two words and their use in the written or spoken English?
Are they interchangeable?

Question

Answer

This is what the Cambridge Dictionary says (http://dictionary.cambridge.org/grammar/british-grammar/pronouns/someone-somebody-something-somewhere):
Someone and somebody have no difference in meaning. Somebody is a little less formal than someone. Someone is used more in writing than somebody. Somebody is more common in speaking.

Answer

someone既可以指人也可以指物，但somebody只指人。
Mybe ,there is  little differences between someone and somebody.
Thanks.

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