pronoun:not anything; not a single thing
There was nothing in the box.
noun:the absence of anything; nonexistence or a null quantity
Philosophers debate the nature of nothing.
pronoun:something of no importance, value, or significance
A few dollars is nothing to someone as wealthy as he is.
noun:zero; no amount or number
The score was five to nothing.
adverb:in no way or degree; not at all
His new painting looks nothing like his earlier work.
