nothing
nil
nix
nada
null
aught
cipher
cypher
goose egg
naught
zero
zilch
zip
zippo
a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential
it looked like nothing I had ever seen before
reduced to nil all the work we had done
we racked up a pathetic goose egg
it was all for naught
I didn't hear zilch about it