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(not) anything; (nothing) at all; (not) any; nothing
and everything else; and all
(not) at all; (not) in the least; (not) especially; (not) to that extent
今日は何も予定がないんだよね。
I have no plans today.
彼女は何も言わなかったんだ。
She didn't say anything.
何も心配することはないからね。
There's nothing to worry about.