strike out

Short definition from Wiktionary

Verb

1. 1
   To lash out; to strike or hit at someone or something, particularly something in arm's length of the striker and at or near the level of the striker's head.
2. 2
   To strongly criticize or make a verbal attack, particularly as a response to previous criticism or provocation.
3. 3
   To draw a line through some text such as a printed or written sentence, with the purpose of deleting that text from the rest of the document.
4. 4
   to treat something as settled
5. 5
   Of a batter, to be retired after three strikes (missed swings, as opposed to any other way of becoming "out"); of a pitcher, to cause this to happen to the batter.
6. 6
   To fail; to be refused a request or to have a proposal not be accepted, in particular a request for a (hopefully romantic) date.
7. 7
   To begin to make one's way.

Noun

1. 1
   Alternative spelling of strikeout.