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
Excuse The explanation for the performance or nonperformance of a particular act; a reason alleged in court as a basis for exemption or relief from guilt. An excuse is essentially a defense for an individual's conduct that is intended to mitigate the individual's blameworthiness for a particular act or to explain why the individual acted in a specific manner.