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
noun. 1  An explanation offered to justify or obtain forgiveness. 2  A reason or grounds for excusing: Ignorance is no excuse for breaking the law. 3  The act of excusing. 4  A note explaining an absence. 5  Informal An inferior example: a poor excuse for a poet; a sorry excuse for a car.