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
Definition of justify for English Language Learners. : 1  to provide or be a good reason for (something) : to prove or show (something) to be just, right, or reasonable. : 2  to provide a good reason for the actions of (someone) : 3  to position (text) so that the edges form a straight line.