no
It is acceptable to spell "nonviolence" both with and without a hyphen.
hyphen
Without a hyphen
The correct spelling is 'hyphen'.
No, I think it's just "Start up". It may be used with a hyphen but not usually.
It needs a hyphen: pre-indictment
multi-task or Multitask -the hyphen is not necessary-
The punctuation mark similar to a dash is spelled hyphen(-).
It used to be that a hyphen was used in prefix words. Now it is without hyphen. He wanted to reestablish control.
That is correct. It may also be spelled without the hyphen
That is the correct spelling (with hyphen) of the adjective "last-minute."
no one knows it is just a hyphen