Definition from macmillandictionary.com
It was an opportunity to strike out for independence.
O’Connor quit his job and decided to strike out on his own.
Without warning, he struck out at Holmes with his right hand.
He struck out at supporters of the bill in his speech yesterday.
We decided to strike out on foot into the forest.
Rostov surfaced, then struck out for the nearest shore.
She slid into the water and struck out across the lake.
Looks like we’ve struck out again.
Strike out lines 5 to 18.
The judge struck out the case for want of cause (=because it was not justified).