v.
1.show to be reasonable or provide adequate ground for
2.show to be right by providing justification or proof
3.defend, explain, clear away, or make excuses for by reasoning
4.let off the hook
5.adjust the spaces between words
Idiom of the Day
cast doubts on (someone or something)
to cause someone or something to be doubted or not believed
The first witness at the trial cast doubts on what the main witness said.