I. transitive verb
1. : to create or form with apparent ease : produce as if by a stroke
struck out the fundamental method … now used by all aesthetic historians — Gilbert Highet
2. : to enter vigorously and suddenly on
breaking free from the family tradition and striking out a line of his own — Sheila Kaye-Smith
3. : to retire (a baseball batter) by a strikeout
allowed two walks and struck out eight
intransitive verb
1. : to enter vigorously and suddenly upon a course of action
had struck out for himself and refused to live the tame easy life that he could have lived — Frank Sargeson
2. : to set out in a vigorous or sudden manner
struck out in the direction … the miller had indicated — T.B.Costain
3. : to make an out in baseball by a strikeout
had a single, walked, and struck out twice
II. intransitive verb
: fail 2e