Justify

verb

1. To provide an acceptable explanation for.

   "How can you justify spending so much money on clothes?"

2. To be a good, acceptable reason for; warrant.

   "Nothing can justify your rude behaviour last night."

3. To arrange (text) on a page or a computer screen such that the left and right ends of all lines within paragraphs are aligned.

   "The text will look better justified."

4. To absolve, and declare to be free of blame or sin.
5. To give reasons for one’s actions; to make an argument to prove that one is in the right.

   "She felt no need to justify herself for deciding not to invite him."