Backlog
In plain terms
An ordered list of work to be done.
Going deeper
A backlog holds all pending tasks, features, and fixes, prioritized so the team knows what to tackle next. It's the queue of future work.
Under the hood
Product and sprint backlogs differ in scope; ongoing refinement keeps it prioritized and ready.
Examples
Product backlog, sprint backlog, prioritized tasks, Jira, work queue.
Think of it like...
Like a prioritized to-do list the team pulls the next task from.