to show (an act, claim, statement, etc.) to be just or right: The end does not always justify the means.
to defend or uphold as warranted or well-grounded: Don't try to justify his rudeness.
Theology. to declare innocent or guiltless; absolve; acquit.
Printing. to make (a line of type) a desired length by spacing the words and letters, especially so that full lines in a column have even margins both on the left and on the right. to level and square (a strike).
Law. to show a satisfactory reason or excuse for something done. to qualify as bail or surety.