LINK / CITE ADD TO WORD LIST. noun. The definition of availability is whether someone or something can be accessed or used. An example of availability is when a classmate can meet to discuss a project on a certain date.
excuse - a defense of some offensive behavior or some failure to keep a promise etc.; he kept finding excuses to stay; every day he had a new alibi for not getting a job; his transparent self-justification was unacceptable
As nouns the difference between justification and rationale. is that justification is a reason, explanation, or excuse which provides convincing, morally acceptable support for behavior or for a belief or occurrence while rationale is an explanation of the basis or fundamental reasons for something.