not anything; no single thing:I said nothingthere’s nothing you can dothey found nothing wrong
something of no importance or concern:“What are you laughing at?” “Oh, nothing, sir.”they are nothing to him [as noun]:no longer could we be treated as nothings
(in calculations) no amount; zero.
adjective
[attributive] informal
having no prospect of progress; of no value:he had a series of nothing jobs
adverb
not at all:she cares nothing for othershe looks nothing like the others
[postpositive]North American informal used to contradict something emphatically:“This is a surprise.” “Surprise nothing.”
words of affection exchanged by lovers:whispering sweet nothings in her ear
think nothing of it
do not apologize or feel bound to show gratitude (used as a polite response).
you ain't seen nothing yet
informal used to indicate that although something may be considered extreme or impressive, there is something even more extreme or impressive in store:if you think that was muddy, you ain’t seen nothing yet